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If 5 men and 2 boys working together, can do four times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time ?

Correct Answer: 2:1

Explanation:

5M + 2B = 4(1M + 1B)


5M + 2B = 4M + 4B


1M = 2B


The required ratio of work done by a man and a boy = 2:1


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