Question

awork done by 12 men or 15 womem in 20 days .what is the time talen by 4 men and 5 women to complete this work?​

Answer 1

Answer:

4 men's one day work + 5 women's one day work. their one day work is 1/30. So they will finish the work in 30 days.

Answer 2

answer

12 men can finished this work in 20 days

so 4 men can finished this work is in 60 days

so 4 men's one day's work = 1/60

15 women can complete this same work in 20 days

so 5 women can complete this in 60 days

so 5 women's one day's work = 1/60

4 men's one day work + 5 women's one day work

1/60 + 1/60 = 1/30

there one day work is 1/30. so they will finished the work in 30 days..