P and Q undertook to do a work for Rs. 7200. P alone could do it in 20 days and Q alone in 12 days. With the assistance of R they ﬁnished the work in 5 days. What is the share (in Rs) of R?

P and Q undertook to do a work for Rs. 7200. P alone could do it in 20

1.	P and Q undertook to do a work for Rs. 7200. P alone could do it in 20 days and Q alone in 12 days. With the assistance of R they ﬁnished the work in 5 days. What is the share (in Rs) of R?
A.	1800
B.	2400
C.	2800
D.	2600
Answer» C. 2800

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P and Q undertook to do a work for Rs. 7200. P alone could do it in 20 days and Q alone in 12 days. With the assistance of R they ﬁnished the work in 5 days. What is the share (in Rs) of R?

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