P alone can do a work in 25 days. P is 40% less efficient than Q. In how many days can Q alone do the work?

P alone can do a work in 25 days. P is 40% less efficient than Q. In h

1.	P alone can do a work in 25 days. P is 40% less efficient than Q. In how many days can Q alone do the work?
A.	18
B.	20
C.	15
D.	16
Answer» D. 16

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P alone can do a work in 25 days. P is 40% less efficient than Q. In how many days can Q alone do the work?

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