Multiple choice

If 10 men can do a piece of work in 12 days, then what will be the time taken by 12 men to do the same piece of work?

  1. 12 days

  2. 10 days

  3. 9 days

  4. 8 days
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is an inverse proportion problem. Since 10 men take 12 days, the total work is 10 * 12 = 120 man-days. Dividing the total work by 12 men gives 120 / 12 = 10 days.

AI explanation

Using the formula derived from the work equivalence method, total work equals men multiplied by days, which is 10 men times 12 days equaling 120 units. To find the required time for 12 men, divide the total work units by the available men: 120 divided by 12 equals 10 days. The time taken is 10 days.

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