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Pipes A and B alone can fill a tank in 6 hours and 4 hours respectively. When both pipes along with pipe C, an outlet pipe, are opened together, 3/8 of the tank gets filled in 90 minutes. Find the time taken by pipe C to empty a completely filled tank.

A 4 hours

B 5 hours

C 6 hours

D 7 hours

E 8 hours

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Relevant for Exams:

IIFCL Grade A/B

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