12 men can do a piece of work in 10 days. How many men would be required to do the same work in 8 days?

12 men can do a piece of work in 10 days. How many men would be required to do the same work in 8 days?

Explanation

12 men × 10 days = 120 man-days

To complete the same work in 8 days:

120 man-days ÷ 8 days = 15 men