A and B can do a certain work in 12 days, B & C can do the same work in 15 days, while A and C can do the same work. In 36 days. In how many days will all three together complete that work?

A and B can do a certain work in 12 days, B & C can do the same work i

1.	A and B can do a certain work in 12 days, B & C can do the same work in 15 days, while A and C can do the same work. In 36 days. In how many days will all three together complete that work?
A.	11.15 days
B.	11.20 days
C.	10.75 days
D.	11.25 days
Answer» E.

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A and B can do a certain work in 12 days, B & C can do the same work in 15 days, while A and C can do the same work. In 36 days. In how many days will all three together complete that work?

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