A man is twice as fast as a woman and a woman is twice as fast as a boy. If all of them i.e. a man, a woman and a boy can finish a work together in 4 days, in how many days will a boy do it alone ?

1)21 days

2)14 days

3)28 days

4)7 days

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    28 days

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  • Exam: Solved Paper of Lekhpal held on 13/09/2015

    Can any one explain me how to solve this problem

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    Plz explain it.

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