Time and Work - Data Intensity 1 :: Discussion


13.P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day?
A.10 days
B.14 days
C.15 days
D.9 days
Answer:  Option  C
Explanation:

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Published by:Michael Daani

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