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:
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
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