A and B can do a piece of work in 6 days and A alone can do it in 9 days. The time taken by B alone to do the same work is ?

A and B can do a piece of work in 6 days and A alone can do it in 9 da

1.	A and B can do a piece of work in 6 days and A alone can do it in 9 days. The time taken by B alone to do the same work is ?
A.	18 days
B.	15 days
C.	12 days
D.	7
E.	/
Answer» B. 15 days

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A and B can do a piece of work in 6 days and A alone can do it in 9 days. The time taken by B alone to do the same work is ?

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