P can do a piece of work in 60 days & Q can do the same work in 50 days. Find the ratio of working efficiencies of P to Q.

P can do a piece of work in 60 days & Q can do the same work in 50 da

1.	P can do a piece of work in 60 days & Q can do the same work in 50 days. Find the ratio of working efficiencies of P to Q.
A.	1/3
B.	6/5
C.	5/6
D.	4/5
Answer» D. 4/5

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P can do a piece of work in 60 days & Q can do the same work in 50 days. Find the ratio of working efficiencies of P to Q.

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