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Multiple choice

24 men can do a place of work in 35 days. How many men are required to complete this work in 21 days?

  1. 38

  2. 40

  3. 36

  4. 42

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total work = 24 men × 35 days = 840 man-days. To complete in 21 days, men needed = 840 ÷ 21 = 40 men. This is an inverse proportion problem.

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