Question

24 men working at 8 hours perday can do a piece of work in 15 days. In how many days can 20 men working at 9 hours per day can complete the same work.

Answer 1

16 days

Given 24 men working 8 hours per day can do a

work in 15 days.

So, the total work units = 24 x 8 x 15 = 2880

So, 24 men working at 8 hours per day can do

2880 units of work in 15 days.

Therefore, No. of days required by 20 men, working at 9 hours per day =2880/20 x 9=16

So, 20 men working at 9 hours per day do the

same work in 16 days.