A can do a piece of work in 80 days. He works at it For 10 days and then B alone finishes the work in 42 days. The two together could complete the work in ?

A can do a piece of work in 80 days. He works at it For 10 days and th

1.	A can do a piece of work in 80 days. He works at it For 10 days and then B alone finishes the work in 42 days. The two together could complete the work in ?
A.	24 days
B.	25 days
C.	30 days
D.	35 days
Answer» D. 35 days

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A can do a piece of work in 80 days. He works at it For 10 days and then B alone finishes the work in 42 days. The two together could complete the work in ?

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