Multiple choice

Twelve men complete a piece of work in 24 days. In how many days can eight men complete the same piece of work?

  1. 28

  2. 36

  3. 48

  4. 52

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

Using the work formula M1*D1 = M2*D2: 12 * 24 = 8 * D2. 288 = 8 * D2, so D2 = 36.

AI explanation

Using the formula M1 * D1 = M2 * D2, the total work remains constant. The total work is 12 men * 24 days = 288 man-days. Equating this to the second scenario gives 288 man-days = 8 men * D2 days. Solving for D2 gives 36 days.

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