P, Q and R can do a work in 10, 15 and 30 days respectively. P works daily. Q and R together join P on alternate days starting the first day. In how many days will the work be done?

P, Q and R can do a work in 10, 15 and 30 days respectively. P works d

1.	P, Q and R can do a work in 10, 15 and 30 days respectively. P works daily. Q and R together join P on alternate days starting the first day. In how many days will the work be done?
A.	\(6\frac{1}{3}\)
B.	\(6\frac{3}{4}\)
C.	\(6\frac{1}{2}\)
D.	6
Answer» D. 6

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P, Q and R can do a work in 10, 15 and 30 days respectively. P works daily. Q and R together join P on alternate days starting the first day. In how many days will the work be done?

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