Question

Pipes A, B, and C are connected to a tank. Pipe A can fill the empty tank in 48 minutes, and Pipe B can do the same in 80 minutes. On the other hand, Pipe C is an outlet pipe that can empty the full tank in 96 minutes. If all three pipes are opened simultaneously, how long will it take to fill the tank completely?

A 42(7/11) mins
B 43(7/9) mins
C 42(5/9) mins
D 43(7/11) mins
E None of these
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