Pipes A and B are emptying pipes and can empty a tank in 6 hours and 16 hours, respectively. C is a filling a pipe. All the three pipes were opened together. They took 80 minutes to empty $$ {5 over 8}th$$ of the tank. Pipe C alone can fill the tank in:

Pipes A and B are emptying pipes and can empty a tank in 6 hours and 1

1.	Pipes A and B are emptying pipes and can empty a tank in 6 hours and 16 hours, respectively. C is a filling a pipe. All the three pipes were opened together. They took 80 minutes to empty $$ {5 over 8}th$$ of the tank. Pipe C alone can fill the tank in:
A.	36 hours
B.	42 hours
C.	48 hours
D.	40 hours
Answer» D. 40 hours

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Pipes A and B are emptying pipes and can empty a tank in 6 hours and 16 hours, respectively. C is a filling a pipe. All the three pipes were opened together. They took 80 minutes to empty $$ {5 over 8}th$$ of the tank. Pipe C alone can fill the tank in:

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