A, B and C can complete a work in 5, 10 and 30 days respectively. In how many days A, B and C together can complete the same work?

A, B and C can complete a work in 5, 10 and 30 days respectively. In h

1.	A, B and C can complete a work in 5, 10 and 30 days respectively. In how many days A, B and C together can complete the same work?
A.	4
B.	2
C.	3
D.	3.5
Answer» D. 3.5

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A, B and C can complete a work in 5, 10 and 30 days respectively. In how many days A, B and C together can complete the same work?

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