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Question

Pipe A can fill a tank in 10 hours, whereas pipe B can empty the same tank in 12 hours. If the two pipes are operated alternately for one hour each, starting with pipe A, how much time will it take to completely fill the tank?

A 109 hrs

B 112 hrs

C 124 hrs

D None of the above

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Relevant for Exams:

SSC CGL

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