Multiple choice

40 men can complete a work in 15 days. If the same work is to be completed 3 days before, how many more men should be employed?

  1. 8

  2. 3

  3. 15

  4. 10

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is an inverse proportion problem: more workers means fewer days. Total work = 40 × 15 = 600 man-days. To complete 3 days earlier means in 12 days. Required workers = 600/12 = 50. Additional workers needed = 50 - 40 = 10. Option D is correct. Options A, B, and C are incorrect calculations.

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