Modded SAT Question Bank
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Test
Math
Domain
Problem-Solving and Data Analysis
Skill
Ratios, rates, proportional relationships, and units
Difficulty
Easy
ID: 3f5398a6
Modded SAT Question Bank by Abdullah Mallik

For a person m miles from a flash of lightning, the length of the time interval from the moment the person sees the lightning to the moment the person hears the thunder is k seconds. The ratio of m to k can be estimated to be 1 to 5. According to this estimate, the person is how many miles from a flash of lightning if the time interval is 25 seconds?

  1. 10

  2. 9

  3. 6

  4. 5

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Correct Answer:
Rationale

Choice D is correct. It’s given that the ratio of m to k is estimated to be 1 to 5. Therefore, when k equals 25, the relationship between these ratios can be expressed by the proportion m over 25, equals one fifth. Multiplying both sides of this equation by 25 yields m equals 5.

Choices A, B, and C are incorrect and may result from calculation errors.

Question Difficulty: Easy
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