Both X and Y together can complete a work in 12 days and Y alone can complete the same work in 30 days. In how many days will X alone complete the work?_x005F_x000D_

Both X and Y together can complete a work in 12 days and Y alone can c

1.	Both X and Y together can complete a work in 12 days and Y alone can complete the same work in 30 days. In how many days will X alone complete the work?_x005F_x000D_
A.	15
B.	20
C.	18
D.	16
Answer» C. 18

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Both X and Y together can complete a work in 12 days and Y alone can complete the same work in 30 days. In how many days will X alone complete the work?_x005F_x000D_

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