Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 10 hours pipe A, B, C together can fill the same tank in 12 hours. In how many hours pipe C can fill the tank alone?

Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 10

1.	Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 10 hours pipe A, B, C together can fill the same tank in 12 hours. In how many hours pipe C can fill the tank alone?
A.	$$12{1 over2} $$ hours
B.	4 hours
C.	15 hours
D.	Not possible
Answer» E.

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Pipe A can fill a tank in 6 hours. Pipe B can fill the same tank in 10 hours pipe A, B, C together can fill the same tank in 12 hours. In how many hours pipe C can fill the tank alone?

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