If 5 men can reap a Field in 9 days, how many days will 15 men take to reap the Field?

In this scenario, we can use the concept of man-days to solve the problem. If 5 men can reap a field in 9 days, that means the total man-days required to reap the field is 5 men × 9 days = 45 man-days. Now, if 15 men are assigned to the field, we can find out how many days it would take them to finish the task by dividing the total man-days by the number of men: 45 man-days ÷ 15 men = 3 days. Thus, 15 men will take 3 days to reap the field. This classic problem highlights the effectiveness of teamwork and resource management in achieving a common goal more efficiently. It's a great example of how increasing personnel can significantly reduce time requirements, a principle applicable in various industries, from agriculture to project management!