Multiple choice

Thirty men can complete a work in 36 days. In how many days can 18 men complete the same piece of work?

  1. 40

  2. 50

  3. 60

  4. 70

  5. 80
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Using M1D1 = M2D2: 30 * 36 = 18 * D2. D2 = (30 * 36) / 18 = 30 * 2 = 60.

AI explanation

Using the formula of man days, total work equals 30 men multiplied by 36 days, which gives 1080 man days. Dividing this total work by the 18 men available gives the required time. The calculation is 1080 divided by 18, which results in 60 days.

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