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Pipes and Cisterns aptitude questions and answers - Page 1

1. Two taps A and B can fill a tank in 5 hours and 20 hours respectively. If both the taps are open then due to a leakage, it took 30 minutes more to fill the tank. If the tank is full, how long will it take for the leakage alone to empty the tank?

A. 4.5 hrs

B. 9 hrs

C. 18 hrs

D. 36 hrs

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