Question

2men or 3womencan do a piece of work in 16 day .In how many days can 4 men and 6women do the same work?

Answer 1

2 men can do 1 work in 16 days
1 man can do 1/32 work in 1 day
4 mmen can do 1/8 work in 1 day
similarly
1 woman can do 1/48 work in 1 day
6 women can do 1/8 work in 1 day

4 men and 6 women can do 1/8plus 1/8 work in 1 day
that means 1/4 work in 1 day
so they can do 1 work in 4 days ...