1.

Two inlet pipes P and Q can fill an empty tank in 18 hours and 20 hours respectively. Both the two pipes were opened simultaneously but as soon as the tank was half filled a leakwas detectedin the bottom of the tank. After closing that leak, the two inlet pipes took 1 hour less to fill the remaining half of the tank than they had taken to fill the first half of the tank. Find how much time the leak would take to empty the filled tank?

A. 54 126 hrs 361
B. 51 126 hrs 361
C. 44 126 hrs 361
D. 58 126 hrs 361
E. None of these
Answer» B. 51 126 hrs 361


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