GMAT Flashcards: Quant, Verbal & Data Insights Decisions

300 original flashcards for current-format GMAT Quant, Verbal, and Data Insights concepts, cues, and reusable decisions.

このデッキについて

GMAT Flashcards: Quant, Verbal & Data Insights Decisions

Build quick recall for the current GMAT with 300 original cards across Quantitative Reasoning, Verbal Reasoning, and Data Insights. The deck focuses on reusable concepts and decisions; full-length practice belongs in official or properly licensed question banks.

What the cards map

  • Quant maps numeric forms, terms, rules, and formulas to their meaning, conditions, or use. Short scenarios ask for the operation, equation, or answer check that fits.
  • Verbal maps passage and argument cues to purpose, scope, evidence, inference, reasoning flaws, and evaluation moves.
  • Data Insights maps targets, constraints, source and display cues, metrics, and evidence states to the interpretation or decision they support. It covers Data Sufficiency, Multi-Source Reasoning, Table Analysis, Graphics Interpretation, and Two-Part Analysis.

Learning order

The mixed sequence keeps all three sections in rotation. Quant foundations come before algebra, models, and strategy checks; passage reading comes before argument evaluation; shared data literacy comes before the five Data Insights formats. Closely related prompts are spaced apart so one card does not cue the next.

Current-format boundary

This deck has no geometry lessons or formula drills, Sentence Correction, or the retired Integrated Reasoning section. It also excludes timing, scoring, test-center policy, full passages, large data sets, and response-pattern tricks.

Every card is an original compact concept or decision prompt. No official or competitor questions, answer choices, explanations, mark schemes, curriculum text, logos, or trade dress were copied or adapted. See the official GMAT exam content and Data Insights preparation guidance for the current exam boundary.

This is an independent, unofficial study resource. It is not affiliated with, endorsed by, or sponsored by the Graduate Management Admission Council (GMAC). GMAT is used only to identify the exam.

このデッキのカード

  1. カード 1

    質問

    Which numerator-and-denominator operation creates an equivalent fraction?

    回答

    Multiply or divide the numerator and denominator by the same nonzero number. The fraction's value stays unchanged.

  2. カード 2

    質問

    What does data sufficiency ask you to determine?

    回答

    Whether the information guarantees one answer. You usually don’t need to calculate that answer.

  3. カード 3

    質問

    How do you form a passage's main idea?

    回答

    Combine the passage's central topic with its main claim about that topic. The answer should cover the whole passage at the right level.

  4. カード 4

    質問

    What does multiplying a decimal by 10ⁿ do when n is a positive integer?

    回答

    It moves the decimal point n places to the right. Dividing by 10ⁿ moves it n places left.

  5. カード 5

    質問

    What makes information sufficient for a value question?

    回答

    It forces exactly one value for the target. Different values that satisfy all conditions make it insufficient.

  6. カード 6

    質問

    How do you identify the passage's primary purpose?

    回答

    Name what the author is doing with the topic: explaining, comparing, challenging, defending, or proposing. Keep content and action together.

  7. カード 7

    質問

    How do you find p percent of a quantity q?

    回答

    Compute (p/100) × q. Translate “of” as multiplication.

  8. カード 8

    質問

    How can two valid cases prove insufficiency?

    回答

    Make the cases produce different answers to the question. One clean counterexample pair is enough.

  9. カード 9

    質問

    How do you determine a paragraph's role?

    回答

    Connect the paragraph to what comes before and after it. Decide whether it introduces, supports, qualifies, contrasts, applies, or concludes the larger discussion.

  10. カード 10

    質問

    A total of 45 is split in the ratio 2:3. What are the two parts?

    回答

    18 and 27. The five ratio units are worth 45 ÷ 5 = 9 each.

  11. カード 11

    質問

    Why can an integer restriction change sufficiency?

    回答

    It removes noninteger possibilities. A range containing many real numbers may contain only one integer.

  12. カード 12

    質問

    When is a product of signed factors negative?

    回答

    Provided no factor is zero, an odd number of negative factors gives a negative product, while an even number gives a positive product. If any factor is zero, the product is zero.

  13. カード 13

    質問

    How should two data-sufficiency statements be tested initially?

    回答

    Test each statement independently against the stem. Do not carry information from one statement into the other.

  14. カード 14

    質問

    What makes an integer greater than 1 prime?

    回答

    It has exactly two positive divisors: 1 and itself.

  15. カード 15

    質問

    What should you do first on a detail question?

    回答

    Return to the relevant lines and read their local context. Memory tends to preserve the topic while blurring qualifications.

  16. カード 16

    質問

    What is the divisibility rule for 2?

    回答

    The last digit must be even: 0, 2, 4, 6, or 8.

  17. カード 17

    質問

    How do you test whether a fact is relevant?

    回答

    Connect it to the requested target. A true fact that does not narrow the target adds no decision value.

  18. カード 18

    質問

    How far may a reading inference go beyond the text?

    回答

    Only as far as the text strongly supports. Prefer the smallest justified step and reject claims needing outside knowledge.

  19. カード 19

    質問

    Why is prime factorization useful in GMAT arithmetic?

    回答

    It exposes divisibility, factors, greatest common factors, least common multiples, and perfect powers.

  20. カード 20

    質問

    What must happen before quantities with different units are combined?

    回答

    First confirm that their dimensions are compatible, then convert them to a common unit. Keep the unit attached through the calculation to catch mismatches.

  21. カード 21

    質問

    How do you apply a passage principle to a new case?

    回答

    Extract the principle's required conditions, then test whether the new case has them. Surface similarity isn't enough.

  22. カード 22

    質問

    Which relationship connects distance, rate, and time?

    回答

    Distance = rate × time. Rearrange only after the units are compatible.

  23. カード 23

    質問

    How do you find a least common multiple from prime factorizations?

    回答

    Take every prime that appears, using the largest exponent present.

  24. カード 24

    質問

    How do you multiply powers with the same base?

    回答

    Add the exponents: aᵐ × aⁿ = aᵐ⁺ⁿ.

  25. カード 25

    質問

    How is a weighted average computed?

    回答

    Divide the total weighted value by the total weight. For groups, use group size as the weight unless another weight is given.

  26. カード 26

    質問

    What should a quick passage map record?

    回答

    Each paragraph's role and major viewpoint, plus the passage's overall direction. Record structure, not a sentence-by-sentence summary.

  27. カード 27

    質問

    What does the principal square root symbol √x return?

    回答

    For real x ≥ 0, it is the nonnegative number whose square is x. For example, √9 = 3, not ±3.

  28. カード 28

    質問

    When can bounds replace exact arithmetic?

    回答

    When the bounds separate the viable decisions. Stop once every value in the interval leads to the same choice.

  29. カード 29

    質問

    How do you keep viewpoints separate?

    回答

    Attach each claim to its speaker: author, critic, researcher, or group. Track agreement, disagreement, and any later qualification.

  30. カード 30

    質問

    How do “sum,” “product,” and “quotient” translate into algebra?

    回答

    They mean addition, multiplication, and division, respectively.

  31. カード 31

    質問

    How do you reduce a fraction to lowest terms?

    回答

    Divide the numerator and denominator by their greatest common factor.

  32. カード 32

    質問

    What evidence should determine the author's tone?

    回答

    Evaluative words, qualifications, and the treatment of competing views. Topic alone doesn't establish approval, concern, or skepticism.

  33. カード 33

    質問

    When should rounding usually occur?

    回答

    At the end, unless estimation already settles the decision. Early rounding can move a result across a cutoff.

  34. カード 34

    質問

    How do you convert a terminating decimal to a fraction?

    回答

    Write the digits over the matching power of 10, then reduce. For example, 0.375 = 375/1000 = 3/8.

  35. カード 35

    質問

    When should you stop calculating in a sufficiency problem?

    回答

    As soon as uniqueness is proved or disproved. More arithmetic cannot change the sufficiency decision.

  36. カード 36

    質問

    How do you spot an out-of-scope answer?

    回答

    It introduces a person, period, cause, or consequence the passage doesn't address. Being reasonable doesn't make it textually supported.

  37. カード 37

    質問

    What is the percent-change formula?

    回答

    For original > 0, percent change = (new − original) / original × 100%. Percent change from zero is undefined; negative baselines require context-specific interpretation.

  38. カード 38

    質問

    What makes information sufficient for a yes-or-no question?

    回答

    It forces the same yes-or-no answer in every valid case. The underlying value may still vary.

  39. カード 39

    質問

    What preserves a ratio when its quantities are scaled?

    回答

    Multiplying or dividing both terms by the same nonzero factor preserves the ratio.

  40. カード 40

    質問

    How do you reject a main-idea answer with the wrong scope?

    回答

    Compare it with the whole passage. A detail-only answer is too narrow; a claim extending beyond the passage is too broad.

  41. カード 41

    質問

    Why should you track whether a variable is positive, negative, or zero?

    回答

    Sign controls valid cases and operations. Squaring can hide sign, and division requires a nonzero denominator.

  42. カード 42

    質問

    How do you simplify subtraction of a negative number?

    回答

    Change it to addition: a − (−b) = a + b.

  43. カード 43

    質問

    Whose purpose matters in a primary-purpose question?

    回答

    The passage author's purpose. A theory or researcher may be described at length without representing what the author ultimately wants to do.

  44. カード 44

    質問

    When is the on-screen calculator most useful?

    回答

    For tedious arithmetic after the setup is clear. It does not replace choosing the right relationship or denominator.

  45. カード 45

    質問

    In Data Sufficiency, what stem information applies when testing either statement?

    回答

    Everything in the question stem. Stem facts remain active for each statement and for the combination.

  46. カード 46

    質問

    What is the divisibility rule for 3?

    回答

    The sum of the digits must be divisible by 3.

  47. カード 47

    質問

    What does a transition paragraph often do?

    回答

    It closes one line of thought and sets up the next. Its role depends on both sides, not only on its first sentence.

  48. カード 48

    質問

    When is a proxy measure useful?

    回答

    When evidence shows it reliably tracks the target for the intended decision. Correlation may support prediction, but it proves neither causation nor suitability on its own.

  49. カード 49

    質問

    How do you find a greatest common factor from prime factorizations?

    回答

    Take each shared prime to the smaller exponent.

  50. カード 50

    質問

    What is the arithmetic mean?

    回答

    The sum of the values divided by the number of values.

  51. カード 51

    質問

    What units should a rate have?

    回答

    One quantity per another, such as kilometers per hour. The denominator tells you what the rate is measured against.

  52. カード 52

    質問

    How do you divide powers with the same nonzero base?

    回答

    Subtract the exponents: aᵐ ÷ aⁿ = aᵐ⁻ⁿ.

  53. カード 53

    質問

    What makes a paraphrase faithful to a passage detail?

    回答

    It preserves the original meaning, scope, and certainty in different words. Shared keywords alone don't make it accurate.

  54. カード 54

    質問

    How do you recover a total from an average?

    回答

    Total = average × number of values.

  55. カード 55

    質問

    How do you choose between two plausible reading inferences?

    回答

    Choose the one with the tighter textual chain and fewer assumptions. Plausibility in the real world is secondary.

  56. カード 56

    質問

    What quick check can catch a calculator-entry error?

    回答

    Estimate the order of magnitude and direction first. An exact result far outside that range deserves another look.

  57. カード 57

    質問

    How do you simplify a square root with a perfect-square factor?

    回答

    Factor out the perfect square. For example, √72 = √(36 × 2) = 6√2.

  58. カード 58

    質問

    What makes a new example parallel to one in the passage?

    回答

    The same logical relationship. Match cause, contrast, exception, or function rather than shared subject matter.

  59. カード 59

    質問

    When can work rates be added?

    回答

    Add the stated constant rates when the workers operate simultaneously without interfering with one another. At 1/4 and 1/6 job per hour, together they complete 5/12 job per hour.

  60. カード 60

    質問

    What is the denominator in a percent comparison?

    回答

    The stated reference value. “A as a percent of B” means A divided by B, then multiplied by 100.

  61. カード 61

    質問

    How do you translate “5 less than x”?

    回答

    x − 5. The phrase “less than” reverses the spoken order.

  62. カード 62

    質問

    In Data Sufficiency, what should you check before testing values?

    回答

    The full domain. Honor stated restrictions and implicit ones such as positive lengths or nonzero divisors before judging sufficiency.

  63. カード 63

    質問

    How do you add fractions with different denominators?

    回答

    Rewrite them with a common denominator, then add the numerators. For example, 2/3 + 1/4 = 8/12 + 3/12 = 11/12.

  64. カード 64

    質問

    How do you distinguish description from argument in a passage?

    回答

    Description presents what happened or what a view says; argument gives reasons to accept, reject, or revise a claim.

  65. カード 65

    質問

    How should you compare decimals with different lengths?

    回答

    Append trailing zeros and compare place by place. For example, compare 0.47 with 0.4700, which are equal.

  66. カード 66

    質問

    How should combined statements be evaluated?

    回答

    Intersect their constraints with the stem. The combination is sufficient only if every remaining case gives one answer.

  67. カード 67

    質問

    How do you find common ground between two viewpoints?

    回答

    Look for the narrow claim both accept, even if they disagree about its cause, importance, or implications.

  68. カード 68

    質問

    How do you solve a proportion such as a/b = c/d?

    回答

    Cross-multiply to get ad = bc, provided b and d are nonzero.

  69. カード 69

    質問

    How is average speed computed?

    回答

    Total distance divided by total time. It is not usually the simple mean of the segment speeds.

  70. カード 70

    質問

    What does |x| represent?

    回答

    The nonnegative distance from x to 0 on the number line.

  71. カード 71

    質問

    Why are strongly emotional tone descriptions often wrong?

    回答

    They overstate measured academic prose. Match the answer's intensity to the author's actual language.

  72. カード 72

    質問

    What is the divisibility rule for 4?

    回答

    The number formed by the last two digits must be divisible by 4.

  73. カード 73

    質問

    Can the ordinary percent-change formula be applied directly when the original value is zero or negative?

    回答

    No. The ordinary GMAT rule assumes original > 0. Change from zero is undefined, and a negative baseline requires context-specific interpretation.

  74. カード 74

    質問

    Why can a true statement still be a wrong answer?

    回答

    It may not answer the question asked. Check the task—main idea, detail, inference, role, or purpose—before checking truth.

  75. カード 75

    質問

    When must a weighted average lie between its component values?

    回答

    When every weight is nonnegative and the total weight is positive. The average then lies between the smallest and largest component values.

  76. カード 76

    質問

    How do you express an integer n divided by d with remainder r?

    回答

    n = dq + r, where q is an integer and 0 ≤ r < d for positive d.

  77. カード 77

    質問

    What does an inequality usually provide?

    回答

    A range, not a unique value. It can still be sufficient if the question asks whether a threshold is crossed.

  78. カード 78

    質問

    How should you handle an EXCEPT detail prompt?

    回答

    Verify four statements against the passage and select the one that isn't supported. Keep the reversed task visible while checking each choice.

  79. カード 79

    質問

    How should you set up a unit conversion?

    回答

    Multiply by a conversion factor equal to 1, placing units so the unwanted unit cancels.

  80. カード 80

    質問

    Can two individually insufficient statements remain insufficient together?

    回答

    Yes. They may repeat the same limitation or still leave multiple valid answers.

  81. カード 81

    質問

    For a positive base, how do you simplify a power raised to another power?

    回答

    Multiply the exponents: (aᵐ)ⁿ = a^(mn).

  82. カード 82

    質問

    When can you infer that an author accepts a claim?

    回答

    When the author endorses it directly or relies on it without distancing language. Merely reporting another person's view isn't endorsement.

  83. カード 83

    質問

    How should successive percentage changes be combined?

    回答

    Multiply their factors. A 10% rise followed by a 10% fall gives 1.10 × 0.90 = 0.99, a 1% net fall.

  84. カード 84

    質問

    What are compatible numbers in estimation?

    回答

    Nearby numbers chosen to make mental arithmetic easy, such as 203 ÷ 9.9 ≈ 200 ÷ 10 = 20.

  85. カード 85

    質問

    Which constraints are easy to overlook in a word problem?

    回答

    Countability, positivity, distinctness, and capacity limits. Translate each noun and rule into a usable constraint.

  86. カード 86

    質問

    How do you state the exact disagreement between two viewpoints?

    回答

    Identify one claim that one side accepts and the other rejects. Don't substitute a topic that only one side discusses.

  87. カード 87

    質問

    How do you represent three consecutive integers?

    回答

    n, n + 1, and n + 2 for an integer n.

  88. カード 88

    質問

    How do percentage points differ from percent change?

    回答

    Percentage points are the direct difference between percentages. Moving from 20% to 25% is 5 points and a 25% relative increase.

  89. カード 89

    質問

    What is a reversed-relationship trap?

    回答

    It swaps cause and effect, support and conclusion, or the positions of two viewpoints while reusing familiar passage language.

  90. カード 90

    質問

    How do you multiply two fractions?

    回答

    Multiply numerator by numerator and denominator by denominator, canceling common factors when convenient.

  91. カード 91

    質問

    How do direct and inverse proportion differ?

    回答

    Direct: y = kx; inverse: y = k/x for x ≠ 0.

  92. カード 92

    質問

    How do you recover an original value after a percentage increase?

    回答

    Divide the new value by the growth factor. After a 20% increase, original = new ÷ 1.20.

  93. カード 93

    質問

    When should absolute wording raise suspicion?

    回答

    When the passage is qualified. Words such as always, never, entirely, and impossible require equally strong textual support.

  94. カード 94

    質問

    What should you identify first in Data Sufficiency?

    回答

    The exact target and answer type. Decide whether the stem asks for a value, a comparison, or a yes-or-no result.

  95. カード 95

    質問

    What ending makes an integer divisible by 5 or by 10?

    回答

    A last digit of 0 or 5 gives divisibility by 5; a last digit of 0 gives divisibility by 10.

  96. カード 96

    質問

    How should a Data Sufficiency condition be handled?

    回答

    Translate it into a precise constraint before testing sufficiency. Keep it separate from the conclusion you want.

  97. カード 97

    質問

    How do you reject a half-right answer?

    回答

    Test every part of it. One accurate clause can't rescue a second clause that distorts the passage or exceeds its scope.

  98. カード 98

    質問

    When you convert a positive measurement to a smaller linear unit, what happens to its numerical value?

    回答

    It increases. Multiply by the number of smaller units in one larger unit.

  99. カード 99

    質問

    DS example: Is x > 5? Statement: x > 3. Is the statement sufficient?

    回答

    No. Both x = 4 and x = 6 satisfy the statement, but they answer the stem differently.

  100. カード 100

    質問

    What is a⁰ when a is nonzero?

    回答

    1. The nonzero-base condition matters because 0⁰ is not assigned this rule.
  101. カード 101

    質問

    Which claim is the argument trying to establish?

    回答

    The main conclusion. Find the claim supported by the other statements, then check that it answers the argument's central issue.

  102. カード 102

    質問

    When should the two statements be combined?

    回答

    When neither statement is sufficient alone. Use both constraints at once and test the remaining possibilities.

  103. カード 103

    質問

    A positive number rounds to 8.2 to the nearest tenth. What interval contains it?

    回答

    8.15 ≤ x < 8.25. The lower endpoint rounds up to 8.2; the upper endpoint rounds to 8.3.

  104. カード 104

    質問

    What should you check when the conclusion changes populations?

    回答

    Whether the evidence applies to the new population. Results from volunteers, specialists, or one age group may not transfer to everyone.

  105. カード 105

    質問

    How should test values be chosen in Data Sufficiency?

    回答

    Choose valid values that probe boundaries, signs, and distinct outcomes. Random easy values can miss the deciding case.

  106. カード 106

    質問

    How do you translate “A is 30% more than B”?

    回答

    A = 1.30B. The percentage is based on B.

  107. カード 107

    質問

    When can one equation involving two variables be sufficient for a target?

    回答

    When every valid solution gives the same target value, even if neither variable is unique. For example, x + y = 10 is sufficient to determine x + y.

  108. カード 108

    質問

    What does a correlation establish by itself?

    回答

    Only that two things vary together. It doesn't establish which one causes the other or whether a third factor causes both.

  109. カード 109

    質問

    How do you divide by a nonzero fraction?

    回答

    Multiply by its reciprocal. For example, 3/5 ÷ 2/7 = 3/5 × 7/2.

  110. カード 110

    質問

    Why is a ratio often insufficient for an absolute value?

    回答

    A ratio fixes relative size but usually leaves the scale free. Many proportional pairs can share the same ratio.

  111. カード 111

    質問

    What is the divisibility rule for 9?

    回答

    The sum of the digits must be divisible by 9.

  112. カード 112

    質問

    What matters most when applying a sample result to a population?

    回答

    Representativeness. The sample must resemble the target population on traits that could affect the result.

  113. カード 113

    質問

    What should you check after solving a squared equation?

    回答

    Check every allowed root. If positive and negative roots produce different target answers, the information is insufficient.

  114. カード 114

    質問

    What does a negative exponent mean?

    回答

    It takes the reciprocal: a⁻ⁿ = 1/aⁿ for nonzero a.

  115. カード 115

    質問

    Which baseline makes a comparison informative?

    回答

    The baseline relevant to the claim. Compare the outcome with what would otherwise have happened, not merely with an unrelated earlier figure.

  116. カード 116

    質問

    What risk appears when an equation factors into multiple branches?

    回答

    Each branch may create valid cases. Test all branches against the stem before deciding sufficiency.

  117. カード 117

    質問

    How can you compare two positive fractions quickly?

    回答

    Compare their cross-products. For a/b and c/d with positive denominators, compare ad with bc.

  118. カード 118

    質問

    What may be assumed from a Data Sufficiency diagram?

    回答

    Only marked or stated facts. Do not infer scale, equality, perpendicularity, or midpoint status from appearance.

  119. カード 119

    質問

    What multiplier represents a p percent increase or decrease?

    回答

    Use 1 + p/100 for an increase and 1 − p/100 for a decrease.

  120. カード 120

    質問

    Which statements count as evidence?

    回答

    The statements offered as reasons to accept another claim. Evidence may be factual or assumed for the argument, even if it isn't proven in real life.

  121. カード 121

    質問

    Can a mean determine an individual observation?

    回答

    Not by itself. A mean fixes the total, but different sets can have that total unless more constraints apply.

  122. カード 122

    質問

    What weakens a move from past evidence to a present claim?

    回答

    A relevant change over time. New technology, prices, rules, or behavior can make the earlier evidence a poor guide.

  123. カード 123

    質問

    A value becomes 96 after a 20% increase. What was the original value?

    回答

    1. Divide the final value by the growth multiplier: 96 ÷ 1.2 = 80.
  124. カード 124

    質問

    How do extreme valid cases help in Data Sufficiency?

    回答

    They expose whether the target can change. Test the smallest, largest, or boundary cases allowed by the conditions.

  125. カード 125

    質問

    How do you test for reverse causation?

    回答

    Ask whether the alleged effect could instead cause the alleged cause. Productive teams may meet more because they are productive, not the reverse.

  126. カード 126

    質問

    Must a sufficient statement make every variable unique?

    回答

    No. It only needs to make the requested target unique, even if other variables remain undetermined.

  127. カード 127

    質問

    A price rises 20% and then falls 20%. Does it return to its original value?

    回答

    No. The multipliers give 1.20 × 0.80 = 0.96, so the final price is 4% below the original.

  128. カード 128

    質問

    Why can a voluntary survey be biased?

    回答

    People who choose to respond may differ from those who don't. Strong opinions or extra interest can distort the sample.

  129. カード 129

    質問

    How do you expand a(b + c)?

    回答

    ab + ac. The outside factor multiplies every term inside the parentheses.

  130. カード 130

    質問

    What should the final Data Sufficiency decision describe?

    回答

    Which information set guarantees an answer. It should not report the target’s numerical value.

  131. カード 131

    質問

    What is the goal when solving a linear equation?

    回答

    Isolate the variable by applying equivalent operations to both sides.

  132. カード 132

    質問

    DS example: Is integer n even? Statement: n = 7. Is the statement sufficient?

    回答

    Yes. It guarantees one answer—no. A statement can be sufficient even when that answer is negative.

  133. カード 133

    質問

    When must an inequality sign reverse?

    回答

    When both sides are multiplied or divided by a negative number.

  134. カード 134

    質問

    What must be checked before comparing two groups?

    回答

    Whether they differ in other relevant ways. Age, experience, starting level, or incentives may explain the outcome instead.

  135. カード 135

    質問

    When is substitution preferable to elimination in a two-equation system?

    回答

    Use substitution when one variable is already isolated or easy to isolate; use elimination when coefficients cancel easily.

  136. カード 136

    質問

    What should you build before analyzing Multi-Source Reasoning material?

    回答

    A quick source map. Note what each tab or document contains, who produced it, and the relevant date or scope.

  137. カード 137

    質問

    How do you separate background from evidence?

    回答

    Ask whether the statement supports a claim. Background sets context; evidence does logical work in moving the argument toward a conclusion.

  138. カード 138

    質問

    Which algebraic terms can be combined?

    回答

    Terms with the same variable part and exponents. For example, 3x² and −5x² combine, but 3x² and 3x do not.

  139. カード 139

    質問

    When should you read the Multi-Source Reasoning question?

    回答

    Before a deep read of every source. The question tells you which details deserve attention.

  140. カード 140

    質問

    What is a reliable first step for an equation containing several fractions?

    回答

    Multiply every term by the least common denominator, then solve the simpler equation.

  141. カード 141

    質問

    Why does source provenance matter?

    回答

    It defines what a claim can support. An internal forecast and an audited result do not carry the same evidentiary weight.

  142. カード 142

    質問

    What should you test when evidence comes from a different setting?

    回答

    Whether the settings differ in a way that affects the result. A finding from one market, school, or climate may not carry over unchanged.

  143. カード 143

    質問

    What does an “and” compound inequality require?

    回答

    The overlap of both solution sets. A value must satisfy both conditions.

  144. カード 144

    質問

    What should you compare before combining claims from two sources?

    回答

    Their population, period, units, and definitions. Matching labels can hide different scopes.

  145. カード 145

    質問

    How can a third factor undermine a causal claim?

    回答

    It may explain both events, so their correlation no longer establishes a direct causal link by itself. Hot weather can raise both cold-drink sales and pool attendance.

  146. カード 146

    質問

    What do one, zero, or infinitely many solutions mean for two linear equations in two variables?

    回答

    The lines intersect once, are parallel and distinct, or are the same line, respectively.

  147. カード 147

    質問

    How should records from separate sources be linked?

    回答

    Use a shared key with the same meaning in both sources, such as product code and month. Do not join on a vague label alone.

  148. カード 148

    質問

    How do you factor 6x + 9?

    回答

    3(2x + 3). Pull out the greatest common factor.

  149. カード 149

    質問

    When does nonresponse threaten a survey result?

    回答

    When nonrespondents may answer differently from respondents. A high response count doesn't fix a systematic missing group.

  150. カード 150

    質問

    What is the first step when two sources seem inconsistent?

    回答

    Compare definitions, dates, units, and aggregation levels. Many apparent conflicts come from mismatched frames.

    Abstract study workspace with blue number blocks, amber argument notes, and teal charts around a central light.

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    GMAT Flashcards: Quant, Verbal & Data Insights Decisions

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  151. カード 151

    質問

    When can you use the zero-product property?

    回答

    After rewriting a product equal to zero. If (x − 2)(x + 5) = 0, then x = 2 or x = −5.

  152. カード 152

    質問

    How does an inference differ from a stated fact?

    回答

    A fact appears directly in a source; an inference must follow from the sources without an extra assumption.

  153. カード 153

    質問

    Does a higher percentage by itself prove a higher count?

    回答

    No. The underlying totals matter. Twenty percent of 1,000 is more than fifty percent of 100.

  154. カード 154

    質問

    What does an “or” compound inequality require?

    回答

    The union of the solution sets. A value may satisfy either condition or both.

  155. カード 155

    質問

    What does a blank or omitted value establish?

    回答

    Only that the value is not provided. It does not establish zero, no change, or failure.

  156. カード 156

    質問

    How do you recognize an intermediate conclusion?

    回答

    It is supported by one claim and supports another. It acts as both a conclusion and a premise in the same argument.

  157. カード 157

    質問

    What should you do before writing equations for a two-quantity word problem?

    回答

    Define each variable with its unit, then translate one independent relationship per equation.

  158. カード 158

    質問

    Why should cross-source events be placed in time order?

    回答

    Sequence separates prior conditions from later outcomes and prevents using future information as an earlier cause.

  159. カード 159

    質問

    When should candidate solutions be checked in the original equation?

    回答

    Always after a step that may introduce solutions, especially squaring both sides or clearing variable denominators.

  160. カード 160

    質問

    How can switching from one measured outcome to another create a gap?

    回答

    Evidence about one metric may not support a conclusion about another. More website visits, for example, don't by themselves mean more sales.

  161. カード 161

    質問

    What makes a source relevant to a claim?

    回答

    It supplies evidence for a required link in the claim. Related background alone is not enough.

  162. カード 162

    質問

    How do you solve a factored polynomial inequality reliably?

    回答

    Find the zeros, split the number line into intervals, and test each interval's sign. Include a zero only when equality is allowed.

  163. カード 163

    質問

    Does happening first prove causation?

    回答

    No. The timing may fit a causal story, but coincidence or another cause can still explain the later event.

  164. カード 164

    質問

    How can you spot an unsupported cross-source conclusion?

    回答

    Identify the bridge between evidence and conclusion. If the sources never establish that bridge, the conclusion needs an assumption.

  165. カード 165

    質問

    What do 0 = 0 and 0 = 5 mean after simplifying an equation?

    回答

    0 = 0 means every allowed value is a solution; 0 = 5 means there is no solution.

  166. カード 166

    質問

    What should you verify before comparing figures from different sources?

    回答

    Common units and denominators. Convert first, then compare the same quantity on the same basis.

  167. カード 167

    質問

    How do you interpret |x − a| < r when r is positive?

    回答

    x is within r units of a: a − r < x < a + r.

  168. カード 168

    質問

    What can a larger sample improve?

    回答

    Precision, if the sampling method is sound. A huge biased sample can still give a confidently wrong picture of the population.

  169. カード 169

    質問

    How should a cross-source recommendation be evaluated?

    回答

    Apply the stated decision rule to the combined evidence. Do not substitute a personal preference for the rule.

  170. カード 170

    質問

    If a worker finishes one job in t hours, what is the worker's hourly rate?

    回答

    1/t of the job per hour.

  171. カード 171

    質問

    What can an average hide?

    回答

    The distribution. Two groups can share an average while differing sharply in range, concentration, or the number of extreme values.

  172. カード 172

    質問

    What should you confirm before submitting a Multi-Source Reasoning answer?

    回答

    That every required part is supported by the correct source and scope. One unsupported component can invalidate the whole decision.

  173. カード 173

    質問

    How do you find the amount of a pure component in a mixture?

    回答

    Concentration × total mixture amount. A 30% solution with volume 20 contains 0.30 × 20 = 6 units of the component.

  174. カード 174

    質問

    What role does a concession usually play?

    回答

    It acknowledges a point that weighs against the conclusion, then answers that point or limits its relevance. Don't mistake the conceded claim for the argument's main conclusion.

  175. カード 175

    質問

    When can an apparent cross-source discrepancy be resolved?

    回答

    When a stated difference in scope or method explains both figures. If no bridge is given, keep the conflict open.

  176. カード 176

    質問

    What is the two-set overlap formula?

    回答

    In A or B = in A + in B − in both. Subtract the overlap because it was counted twice.

  177. カード 177

    質問

    What should you identify first in Table Analysis?

    回答

    The row unit, column definitions, and any notes. This establishes what one record and each value represent.

  178. カード 178

    質問

    What is the fundamental counting principle?

    回答

    Multiply the choices at successive stages when each stage has a fixed number of available choices.

  179. カード 179

    質問

    Why distinguish relative change from absolute change?

    回答

    Relative change is the percentage change; absolute change is the amount added or lost. A 50% rise from 2 adds 1, while a 10% rise from 1,000 adds 100.

  180. カード 180

    質問

    How should a table filter be translated?

    回答

    Turn it into an exact inclusion rule. Apply every condition before counting or comparing rows.

  181. カード 181

    質問

    For equally likely outcomes, what is the basic probability formula?

    回答

    Favorable outcomes divided by total possible outcomes.

  182. カード 182

    質問

    What makes a proposed causal mechanism useful?

    回答

    It explains how the cause could produce the effect. A plausible, evidence-backed mechanism strengthens the causal link.

  183. カード 183

    質問

    How do you find the median?

    回答

    Order the values and take the middle value; for an even count, average the two middle values.

  184. カード 184

    質問

    How should numeric values be sorted?

    回答

    By numerical value, not digit order. For example, 12 comes after 9 in ascending order.

  185. カード 185

    質問

    What is missed when evidence includes only successful cases?

    回答

    The failures. Studying only surviving firms can make a strategy look safer or more effective than it is.

  186. カード 186

    質問

    Two machines have stated constant rates of 1/3 and 1/5 job per hour and operate simultaneously without interference. May their rates be added?

    回答

    Yes. The stated rates are constant and the machines do not interfere, so their combined rate is 1/3 + 1/5 = 8/15 job per hour.

  187. カード 187

    質問

    How should a table ratio be built when filters are involved?

    回答

    Derive the numerator and denominator separately from the question, then apply each filter only where it is relevant. Do not automatically filter both quantities or default to all rows.

  188. カード 188

    質問

    What quantity is conserved when two solutions are mixed without loss?

    回答

    The amount of the pure component. Set the sum of the starting component amounts equal to the final component amount.

  189. カード 189

    質問

    When may table rows be added directly?

    回答

    Only when they are disjoint parts of the same measure and use compatible units. Overlapping groups would be double-counted.

  190. カード 190

    質問

    What does n! mean for a positive integer n?

    回答

    The product of the positive integers from 1 through n.

  191. カード 191

    質問

    Where is the argument's logical gap?

    回答

    Between the evidence and the conclusion. State what must connect them without merely repeating either side.

  192. カード 192

    質問

    How do you find the number in neither of two sets?

    回答

    Subtract the number in the union from the total population.

  193. カード 193

    質問

    How should rates from table groups be combined?

    回答

    Divide the total numerator by the total denominator. Weight a group rate by its group size only when that size is the rate's denominator.

  194. カード 194

    質問

    What is wrong with moving from some cases to all cases?

    回答

    The conclusion is broader than the evidence. Evidence that some members have a trait doesn't show that every member does.

  195. カード 195

    質問

    When should you use a permutation?

    回答

    When selecting and arranging items and order matters. The number of ordered selections of r from n distinct items is n!/(n − r)!.

  196. カード 196

    質問

    Why does table granularity matter?

    回答

    A row-level fact may disappear or change after aggregation. Match the claim to the table’s level of detail.

  197. カード 197

    質問

    How do you find the probability that an event does not occur?

    回答

    1 − P(event). This is often the quickest route for “at least one” questions.

  198. カード 198

    質問

    Why does a comparable control group help test causation?

    回答

    It shows what happened without the suspected cause. If the groups differ mainly in that factor, the result is harder to explain another way.

  199. カード 199

    質問

    How should missing table entries be treated?

    回答

    As unknown unless the notes define another meaning. Exclude or include them only as the question directs.

  200. カード 200

    質問

    What is the mode of a data set?

    回答

    A mode is any value with the greatest frequency. Under the no-mode convention, there is no mode only when at least two distinct values all have equal frequency.

  201. カード 201

    質問

    What makes a table comparison valid?

    回答

    The values must have compatible measures, units, periods, populations, and definitions. Normalize only validly convertible differences; reject differences in population, period, or definition that cannot be reconciled.

  202. カード 202

    質問

    What should you check when a prediction extends a past pattern?

    回答

    Whether the conditions behind the past pattern will continue. A trend alone doesn't show that its causes will remain in place.

  203. カード 203

    質問

    How should a drain or other undoing process enter a work-rate equation?

    回答

    As a negative rate. Add productive rates and subtract rates that reverse the work.

  204. カード 204

    質問

    How can you avoid losing your place while scanning a table?

    回答

    Evaluate one condition at a time and mark qualifying rows mentally or on the scratchpad. Count only after the final filter.

  205. カード 205

    質問

    Can evidence that an outcome is possible show it is likely?

    回答

    No. Possibility only shows that an outcome can occur; probability requires evidence about how likely it is.

  206. カード 206

    質問

    What correction is needed when counting the union of three sets?

    回答

    Add the three individual counts, subtract all three pairwise overlaps, then add the triple overlap back once.

  207. カード 207

    質問

    When does a filtered table support a decision?

    回答

    When the qualifying rows satisfy the stated rule. Keep filtering, calculation, and decision as separate steps.

  208. カード 208

    質問

    When should you use a combination?

    回答

    When selecting items and order does not matter. The number of selections of r from n distinct items is n!/[r!(n − r)!].

  209. カード 209

    質問

    What must support a recommendation?

    回答

    A link from the proposed action to the stated goal. The argument also needs the action to be feasible and free of costs that defeat the goal.

  210. カード 210

    質問

    How do AND and OR change a table filter?

    回答

    AND requires every condition; OR requires at least one. Parenthesize mixed rules before scanning rows.

  211. カード 211

    質問

    How do you find the probability that independent events both occur?

    回答

    Multiply their probabilities: P(A and B) = P(A) × P(B).

  212. カード 212

    質問

    What can make an alphabetical sort misleading?

    回答

    Labels may contain categories or embedded numbers. Confirm whether the column is text, numeric, or chronological.

  213. カード 213

    質問

    What kind of fact most directly strengthens an argument?

    回答

    A fact that supports the missing link between evidence and conclusion. Merely repeating a premise adds little.

  214. カード 214

    質問

    What is the range of a data set?

    回答

    Maximum value minus minimum value.

  215. カード 215

    質問

    What should you check at a filter cutoff?

    回答

    Whether the boundary is inclusive. “At least 40” includes 40; “more than 40” does not.

  216. カード 216

    質問

    A train covers 150 miles in 3 hours at a constant rate. What is its rate?

    回答

    50 miles per hour. Rearrange distance = rate × time to get rate = 150 ÷ 3.

  217. カード 217

    質問

    What is the most direct way to weaken an argument?

    回答

    Undermine a necessary assumption connecting the evidence to the conclusion. The premises can remain true while the conclusion loses support.

  218. カード 218

    質問

    What does a tie in the sorted column imply?

    回答

    The tied rows share rank on that measure. Their display order does not create a performance difference.

  219. カード 219

    質問

    How do you identify a useful evaluation question?

    回答

    Test whether opposite answers would push the argument in opposite directions. If both answers leave the conclusion unchanged, the question isn't useful.

  220. カード 220

    質問

    What should you identify first in Graphics Interpretation?

    回答

    The chart type and what each visual encoding represents. Bars, lines, areas, and points support different readings.

  221. カード 221

    質問

    How do repeated identical items affect arrangement counts?

    回答

    For n total items, divide n! by the factorial of each repeated count. Identical items do not create new arrangements when swapped.

  222. カード 222

    質問

    What should you read before estimating a plotted value?

    回答

    Both axis labels, units, and category order. Position has meaning only after the axes are understood.

  223. カード 223

    質問

    How do you test whether a statement is a necessary assumption?

    回答

    Negate it. If that negation seriously damages the argument, the original statement was necessary.

  224. カード 224

    質問

    How do you find the probability that one of two mutually exclusive events occurs?

    回答

    Add their probabilities: P(A or B) = P(A) + P(B). Their overlap is zero.

  225. カード 225

    質問

    What should you verify in a chart legend?

    回答

    Which color, shape, or line maps to each series. Similar styling can otherwise swap the groups in your interpretation.

  226. カード 226

    質問

    What does standard deviation measure?

    回答

    How spread out values are around the mean. Greater dispersion means a larger standard deviation.

  227. カード 227

    質問

    What standard should an inference meet?

    回答

    It must follow from the given statements, without extra assumptions. Choose the modest claim the evidence guarantees.

  228. カード 228

    質問

    What does a segment’s share depend on?

    回答

    The correct whole. A category’s share of one region may differ from its share of the full dataset.

  229. カード 229

    質問

    For motion along the same line, when do you add or subtract two speeds to get relative speed?

    回答

    Add the speeds for opposite directions; subtract the smaller speed from the larger for the same direction.

  230. カード 230

    質問

    What must a paradox explanation accomplish?

    回答

    Make both surprising facts plausible at the same time. Rejecting either stated fact doesn't resolve the tension.

  231. カード 231

    質問

    How is a segment in a stacked bar measured?

    回答

    Subtract its lower boundary from its upper boundary. The upper endpoint alone is cumulative, not the segment value.

  232. カード 232

    質問

    Eight students average 70 and twelve students average 80. What is the combined mean?

    回答

    1. The group sizes are the weights: (8 × 70 + 12 × 80) ÷ 20 = 76.
  233. カード 233

    質問

    What is the difference between a graph’s level and its rate of change?

    回答

    Level is the plotted value; rate of change is the slope. A high line can still be falling.

  234. カード 234

    質問

    How should you describe a statement's role in an argument?

    回答

    Describe what it does, not just what it says. It may support the conclusion, present an objection, answer that objection, or illustrate a principle.

  235. カード 235

    質問

    What is P(A given B)?

    回答

    P(A and B) / P(B), provided P(B) > 0. Restrict the sample space to outcomes in B.

  236. カード 236

    質問

    How should slope be compared across a graph?

    回答

    Use change in vertical value divided by change in horizontal value. Visual steepness is reliable only on the same scales.

  237. カード 237

    質問

    A driver covers equal distances at 30 mph and 60 mph. Is the average speed 45 mph?

    回答

    No. Using 60 miles for each leg gives 120 miles in 3 hours, so the average speed is 40 mph.

  238. カード 238

    質問

    What should you identify first when evaluating a plan?

    回答

    The plan's exact goal and success measure. A proposal can produce benefits yet still fail its stated objective.

  239. カード 239

    質問

    What does a trend in a scatterplot establish?

    回答

    An association in the displayed data. It does not by itself establish causation or predict every individual point.

  240. カード 240

    質問

    How can you strengthen a causal explanation?

    回答

    Rule out a credible alternative cause, support the proposed mechanism, or show the effect changes when the proposed cause changes.

  241. カード 241

    質問

    How can an outlier affect a graphical trend?

    回答

    It can pull a summary line or average away from the main cluster. Check whether the claim concerns all points or the typical pattern.

  242. カード 242

    質問

    Why do probabilities usually change when sampling without replacement?

    回答

    The sample space changes after each draw. Update both the favorable count and the total before multiplying conditional probabilities.

  243. カード 243

    質問

    One value in an n-value set increases by d. How does the mean change?

    回答

    It increases by d/n because the total rises by d while the count stays fixed.

  244. カード 244

    質問

    When does a counterexample weaken a claim?

    回答

    When the claim requires the counterexample not to exist. One genuine exception can defeat an absolute claim, but may barely affect a modest one.

  245. カード 245

    質問

    What is the parity of the sum of two odd integers?

    回答

    Even. Each odd integer is one more than an even integer, so the two extra ones add to 2.

  246. カード 246

    質問

    What can an aggregate graph hide?

    回答

    Differences among subgroups or periods. A stable total can coexist with large offsetting changes inside it.

  247. カード 247

    質問

    When is interpolation reasonable on a graph?

    回答

    When the graph implies continuity between nearby points. Do not interpolate across separate categories.

  248. カード 248

    質問

    What makes information relevant to evaluating an argument?

    回答

    It bears on the uncertain link the conclusion depends on. Interesting facts about the topic may still be logically irrelevant.

  249. カード 249

    質問

    How precise should a value read from a graph be?

    回答

    Only as precise as the scale supports. Use a defensible interval when the mark falls between ticks.

  250. カード 250

    質問

    Must a necessary assumption prove the conclusion?

    回答

    No. It only has to be required for the argument to work; it need not be enough to establish the conclusion on its own.

  251. カード 251

    質問

    How do you multiply positive numbers written in scientific notation?

    回答

    Multiply the coefficients, add the powers of 10, then adjust the coefficient to be at least 1 and less than 10.

  252. カード 252

    質問

    How should a graph-based decision be made?

    回答

    Translate the visual into values or bounds, then apply the stated rule. Do not decide from appearance alone.

  253. カード 253

    質問

    When is backsolving from answer choices especially useful?

    回答

    When the choices are concrete values and direct algebra is slower than testing them in the original conditions.

  254. カード 254

    質問

    How can axis scale distort a visual impression?

    回答

    Unequal intervals or a truncated baseline can magnify or compress differences. Use tick values, not apparent distance alone.

  255. カード 255

    質問

    When should you combine two statements for an inference?

    回答

    When they share a term or relationship that creates a guaranteed consequence. Don't combine them through an unstated causal or statistical link.

  256. カード 256

    質問

    When is a product of integers odd?

    回答

    Only when every factor is odd. One even factor makes the entire product even.

  257. カード 257

    質問

    What often resolves two apparently conflicting results?

    回答

    A hidden difference in group, time, measurement, or conditions. The results may describe different slices of the situation.

  258. カード 258

    質問

    How should equal distances on a logarithmic axis be interpreted?

    回答

    As equal multiplicative changes, not equal absolute changes. Read the labeled values before comparing gaps.

  259. カード 259

    質問

    Why start with a middle answer choice when backsolving ordered options?

    回答

    Its result often eliminates half the choices at once when the relationship is monotonic.

  260. カード 260

    質問

    What makes a Two-Part Analysis response complete?

    回答

    Both selections must satisfy their own column prompts under the same stem. Treat the pair as one submitted response.

  261. カード 261

    質問

    What is an analogy doing when it supports a claim?

    回答

    It argues that because two cases share relevant features, a result or principle from one likely applies to the other.

  262. カード 262

    質問

    How do you represent three consecutive odd integers?

    回答

    n, n + 2, and n + 4, where n is an odd integer.

  263. カード 263

    質問

    What should you identify before solving Two-Part Analysis?

    回答

    The role of each column. One may ask for a condition while the other asks for a consequence or decision.

  264. カード 264

    質問

    What values should you test first in a claim about an unspecified number?

    回答

    Test allowed categories that may behave differently: positive, negative, zero, fractional, and boundary values.

  265. カード 265

    質問

    How can an unchanged bottleneck defeat a plan?

    回答

    Improving a nonlimiting step won't improve the final outcome if another constraint still controls it. Faster ordering doesn't help when production is already full.

  266. カード 266

    質問

    How does the shared stem affect the two parts?

    回答

    Its definitions and constraints apply to both. Keep them fixed while testing each column’s requirement.

  267. カード 267

    質問

    How do you count the positive divisors of an integer greater than 1 from its prime factorization?

    回答

    Add 1 to each prime exponent, then multiply those results.

  268. カード 268

    質問

    In Two-Part Analysis, must the two selected entries be the same?

    回答

    In the current format, the two selected entries may be the same or different. A linkage in the stem determines whether you must reason through them jointly, not whether their values match.

  269. カード 269

    質問

    What makes evidence for a general claim strong?

    回答

    It should be relevant and reliable and, if case-based, come from representative cases. More evidence isn't automatically better evidence.

  270. カード 270

    質問

    How do you factor a difference of squares?

    回答

    Use x² − y² = (x − y)(x + y).

  271. カード 271

    質問

    When should the two Two-Part Analysis selections be solved together?

    回答

    When one shared relationship constrains both. Test candidate pairs against that relationship instead of solving isolated fragments.

  272. カード 272

    質問

    How can one counterexample evaluate a universal claim?

    回答

    One valid counterexample disproves a claim that is supposed to hold for every allowed value.

  273. カード 273

    質問

    How does an alternative explanation weaken a conclusion?

    回答

    It shows that the evidence can be true without the proposed explanation being true. The alternative must account for the same result.

  274. カード 274

    質問

    In Two-Part Analysis, how can one column help solve the other?

    回答

    A valid selection can narrow the remaining candidates when the parts share a constraint. Recheck the final pair in both columns.

  275. カード 275

    質問

    How do you test whether x² + bx + c factors into integer binomials?

    回答

    Look for integers r and s with r + s = b and rs = c. If they exist, the factorization is (x + r)(x + s).

  276. カード 276

    質問

    Which unknown should you evaluate first in a plan argument?

    回答

    A condition that could make the plan achieve or miss its goal. Focus on feasibility, response, costs, and side effects tied to that goal.

  277. カード 277

    質問

    How should a trade-off between two measures be evaluated?

    回答

    Apply the stated priorities or limits. An option is better only relative to the rule, not because one measure is largest.

  278. カード 278

    質問

    How can estimation screen answer choices before exact calculation?

    回答

    Approximate the expression's magnitude, then eliminate choices that are far too large or too small.

  279. カード 279

    質問

    In a constrained-decision Two-Part Analysis problem, what should you check before comparing candidates?

    回答

    Check every hard constraint first. Discard any option that breaks a required limit, then compare only the feasible candidates.

  280. カード 280

    質問

    What does a defensive assumption do?

    回答

    It rules out a threat that would break the argument. For example, a revenue plan may assume that its added costs won't exceed the new revenue.

  281. カード 281

    質問

    What restriction applies when a variable appears in a denominator?

    回答

    Exclude every value that makes the denominator zero.

  282. カード 282

    質問

    How does an objective differ from a constraint?

    回答

    A constraint determines what is allowed; an objective ranks the allowed options. Apply them in that order.

  283. カード 283

    質問

    Which quick checks catch many Quant answer errors?

    回答

    Check the sign, units, allowed range, and rough size against the question's conditions.

  284. カード 284

    質問

    What inference is safe from a statement about most members?

    回答

    More than half have the stated trait. You can't infer that all do, that any particular member does, or that most have another trait.

  285. カード 285

    質問

    How should a two-part threshold rule be handled?

    回答

    Translate each threshold with the correct inequality, including its boundary. Then test both selected values against it.

  286. カード 286

    質問

    Where can one negative sign appear in a fraction without changing its value?

    回答

    Before the fraction, in the numerator, or in the denominator: −(a/b) = (−a)/b = a/(−b), provided b ≠ 0.

  287. カード 287

    質問

    How does an argument choose between competing explanations?

    回答

    It presents evidence that one explanation handles better than the others, often by ruling out a rival prediction.

  288. カード 288

    質問

    What is an efficient way to handle two linked algebraic targets?

    回答

    Express both in terms of one variable or invariant. Evaluate candidate values only after the relationship is clear.

  289. カード 289

    質問

    How do you solve x² = c over the real numbers?

    回答

    If c > 0, x = ±√c; if c = 0, x = 0; if c < 0, there is no real solution.

  290. カード 290

    質問

    What should you check when two selected quantities form a ratio?

    回答

    Order and scale. The ratio A:B is not interchangeable with B:A, and proportional pairs may all fit.

  291. カード 291

    質問

    How does a positive proper fraction compare with 1?

    回答

    It is less than 1 because its numerator is smaller than its denominator.

  292. カード 292

    質問

    Which side effects matter when evaluating a plan?

    回答

    Effects that change the plan's net result or work against its goal. A small unrelated inconvenience usually doesn't matter.

  293. カード 293

    質問

    How should a two-part logical claim be tested?

    回答

    Separate the condition from the conclusion, then test whether each selected statement performs the requested role.

  294. カード 294

    質問

    What is the solution pattern for |x| = a over the real numbers?

    回答

    If a > 0, x = ±a; if a = 0, x = 0; if a < 0, there is no real solution.

  295. カード 295

    質問

    What unit check belongs in a two-part quantitative answer?

    回答

    Confirm that each selection has the unit requested by its column. Linked values may require different conversions.

  296. カード 296

    質問

    Why does user response matter to a plan?

    回答

    The plan may depend on people adopting, following, or not avoiding it. Availability alone doesn't guarantee the needed behavior.

  297. カード 297

    質問

    A response rate rises from 40% to 50%. What are the percentage-point change and the relative percent increase?

    回答

    The increase is 10 percentage points and 25% relative to the original rate: (50 − 40) ÷ 40 = 0.25.

  298. カード 298

    質問

    What is the final check for Two-Part Analysis?

    回答

    Read each column prompt with its chosen entry, then verify that the pair is jointly consistent with the stem.

  299. カード 299

    質問

    For real x and y, what two linear cases are equivalent to x² = y²?

    回答

    x = y or x = −y.

  300. カード 300

    質問

    How should benefits and costs be compared in a plan argument?

    回答

    By their net effect on the stated goal. A plan can create the intended benefit but still fail if its relevant costs are larger.

Abstract study workspace with blue number blocks, amber argument notes, and teal charts around a central light.

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GMAT Flashcards: Quant, Verbal & Data Insights Decisions

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