Question

27 men can complete 1/6 work in 20 days how many men need to complete work in 90 days

Answer 1

Answer: 36

Step-by-step explanation:

If 27 men can complete 1/6 of a job in 20 days, the same 27 men can complete the same job in 20*6 = 120 days.

Thus the job requires the efforts of 27x120 = 3240 man-days.

In order to complete the job in 90 days you need 3240 man-days/90 days = 36 men. Since there are already 27 men, you will need to employ 36–27 or 9 more men.