A can do a half of certain work in 70 days and B one third of the same in 35 days. They together will do the whole work in.

A can do a half of certain work in 70 days and B one third of the s

1.	A can do a half of certain work in 70 days and B one third of the same in 35 days. They together will do the whole work in.
A.	420 days
B.	120 days
C.	105 days
D.	60 days
Answer» E.

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A can do a half of certain work in 70 days and B one third of the same in 35 days. They together will do the whole work in.

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