P,Q, & R can complete a piece of job together in 20 days. All the 3 started working at it together and after8 days P left. Then Q & R together completed a job in 20 more days. P alone could complete the work in.

P,Q, & R can complete a piece of job together in 20 days. All the 3 st

1.	P,Q, & R can complete a piece of job together in 20 days. All the 3 started working at it together and after8 days P left. Then Q & R together completed a job in 20 more days. P alone could complete the work in.
A.	60
B.	50
C.	40
D.	30
Answer» C. 40

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P,Q, & R can complete a piece of job together in 20 days. All the 3 started working at it together and after8 days P left. Then Q & R together completed a job in 20 more days. P alone could complete the work in.

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