A and B together can complete a work in 15 days. A is 50% more efficient worker than B. How long will A take to complete the work alone ?

A and B together can complete a work in 15 days. A is 50% more efficie

1.	A and B together can complete a work in 15 days. A is 50% more efficient worker than B. How long will A take to complete the work alone ?
A.	20 days
B.	21 days
C.	21.4 days
D.	22.5 days
E.	None of these
Answer» F.

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A and B together can complete a work in 15 days. A is 50% more efficient worker than B. How long will A take to complete the work alone ?

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