A man and a woman can finish a work together in half the time taken by a woman and a boy together A ...........

Quantitative Aptitude (CGL) Time and work

A man and a woman can finish a work together in half the time taken by a woman and a boy together. A boy can finish the work alone in 20 days and 2 women together can finish it in 30 days. In how many days will the work be finished by 4 men?

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