Question

2 men and 7 boys can do a piece of work in 4 days. It is done by 4 men and 4
boys in 3 days. How long would it take for one man or one boy to do it?
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Answer 1

Answer:

men and women both can complete the work in 1/2days

Explanation:

let the man can complete a work in x days

and women be y days

make eqn.

2x+7y=4

4x+4y=4

soving these eqn. by elimination method and answer can be find