2 men and 7 boys can do a piece of work in 4 days. The same work is done in 3 days by 4 men and 4 boys. How long would it take one man and one boy to do it?
2 men and 7 boys can do a piece of work in 4 days.It can also be done by 4 men and 4 boys in 3 days .How long would it take for man and one boy to do it.