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A pump can fill a tank with water in 2 h. Because of a leak in the tank, it takes 213 h to fill the tank. The leak can empty the filled tank in___
[SSC CPO 2006, CGL 2002]
According to the question,
part of the tank filled by pump in 1 hour=12
Because of the leak, part of the tank emptied by pump in 1 hour=1213=173=37
part of the tank emptied by the leak in 1 hour=12-37=7-614=114
The tank will be emptied in 14 hours.
Hence option D is correct.
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