Question

2 men, 3 women and 4 children can do work
in 10 days. 2 women and 5 children can do
the same work in 40 days. Find the time
taken by 1 women and 1 child to do the same
work if 3 man and 4 children do the same
work in 22.5 days.

Answer 1

Man per day is 1/2th work

Women per day is 1/16th work

Children per day is 1/20th work

2 men 4 women 10 children can do

1+1/4+1/2=(4+1+2)/4=7/4

All three takes 4/7th of a day to complete total work