P and Q can complete a work in 18 days, Q and R in 24 days and P and R – McqOptions

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1.	P and Q can complete a work in 18 days, Q and R in 24 days and P and R in 36 days. What will be the ratio of efficiency of P, Q and R respectively?
A.	3 : 5 : 1
B.	4 : 3 : 2
C.	3 : 4 : 6
D.	2 : 3 : 5
Answer» B. 4 : 3 : 2

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