Question

15 men take 42 days to complete the work working 4 hours a day. In how many days will 21 women
working 6 hours a day finish the work if 3 women do as much work as 2 men?​

Answer 1

15men and women 3=2 men

24days

working 4 hours a day and 6hours

it will take 126day

Answer 2

15 men take 42 days of 4 hrs. each to do a piece of work.

How many days of 6 hrs. each would it take for 21 women if 3 women do as much work as 2 men?

:

Find the no. of man-hrs to complete the job

15 * 42* 4= 2520 man hrs

:

2 man-hrs = 3 women-hrs

therefore

1 women-hr = 2/3 man-hr

Let d= no. Of days for these women to do the job

21*2/3*6d=2520

84d=2520

D=30 days