In a work, 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 together can complete a work in 4 days, then in how many days will a boy alone complete it?

In a work, a man is twice as fast as a woman and a woman is twice as f

1.	In a work, 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 together can complete a work in 4 days, then in how many days will a boy alone complete it?
A.	28 days
B.	7 days
C.	21 days
D.	14 days
Answer» B. 7 days

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In a work, 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 together can complete a work in 4 days, then in how many days will a boy alone complete it?

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