Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:

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Q. Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:

(A) 1 13/17 hours
(B) 2 8/11 hours
(C) 3 9/17 hours
(D) 4 1/2 hours

Correct Answer - Option(C)

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