A pump can fill a tank with water in 2 hours. Because of a leak, it took 2(1/3)hours to fill the tank. The leak can drain all water of the tank in:
সমাধান
সঠিক উত্তর: Option D
Work done by the leak in 1 hour = (1/2 - 3/7) = 1/14
Leak will empty the tank in 14 hrs.
