Question

2 men and 7 boys can do a piece of work in 4 days the same work can be done in 3 days by 4 men and 4 boys how long will it take one man and one boy to do it​

Answer 1

let 1/x work done per man per day

and 1/y work done per boy per day

according to the question:

4 × (2/x + 7/y) = 1 ______(1)

3 × (4/x + 4/y) = 1 ______(2)

Solving equations (1) and (2), we get

x = 15 ; y = 60.

Therefore, 1 man can do the work in 15 days

and 1 boy can do the work in 60 days

Answer 2

here is your answer 15 and 60 days required alone