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ASVAB · Ratios, Proportions, and Rates

If 5 workers can complete a job in 8 days, how many days would 10 workers take to complete the same job?

Correct answer

4

  1. A 2
  2. B 4
  3. C 6
  4. D 16

Why this is the answer

Inverse proportion: 5 workers × 8 days = 10 workers × d days. d = 40 ÷ 10 = 4 days.
Source: ASVAB AR, Inverse Proportion

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