Three pipes A, B and C when opened simultaneously can fill a tank in 6 hours. C is closed after 2 hours while A and B fill the remaining tank in 7 hours. How long will C take to fill the tank alone?

Three pipes A, B and C when opened simultaneously can fill a tank in 6

1.	Three pipes A, B and C when opened simultaneously can fill a tank in 6 hours. C is closed after 2 hours while A and B fill the remaining tank in 7 hours. How long will C take to fill the tank alone?
A.	10 hours
B.	12 hours
C.	13 hours
D.	14 hours
Answer» E.

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Three pipes A, B and C when opened simultaneously can fill a tank in 6 hours. C is closed after 2 hours while A and B fill the remaining tank in 7 hours. How long will C take to fill the tank alone?

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