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P, Q and R together do a piece of work for 535. P working alone can do it in 5 days. Q alone can do it in 6 days and R alone can do it in 7 days. Then what will be the share of R for its work.

A100

B150

C200

D250

Answer:

B. 150

Read Explanation:

P's share: Q's share: R's share =6x7:5x7:5x6 =42:35:30 R's share = 30 /(42+35+30) x 535 = 30/107 x 535 = 150


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