P and Q can complete a work in 15 days and 10 days respectively. They started the work together and then Q left after 2 days. P alone completed the remaining work. The work was finished in__________days.

P and Q can complete a work in 15 days and 10 days respectively. They

1.	P and Q can complete a work in 15 days and 10 days respectively. They started the work together and then Q left after 2 days. P alone completed the remaining work. The work was finished in__________days.
A.	12
B.	15
C.	22
D.	20
Answer» B. 15

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