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P, Q and R together can complete a work ...

P, Q and R together can complete a work in 36 days. If the ratio of efficiency of P, Q and R is `3 : 2 : 1` respectively, then in how many days R alone can complete the same work?

A

108

B

216

C

72

D

144

Text Solution

Verified by Experts

The correct Answer is:
B
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