A and B together can do a piece of work in 12 days, while B alone can finish it in 30 days. A alone can finish the work in ?

A and B together can do a piece of work in 12 days, while B alone can

1.	A and B together can do a piece of work in 12 days, while B alone can finish it in 30 days. A alone can finish the work in ?
A.	15 days
B.	18 days
C.	20 days
D.	25 days
Answer» D. 25 days

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A and B together can do a piece of work in 12 days, while B alone can finish it in 30 days. A alone can finish the work in ?

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