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 the water of the tank in?
Q1. 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 the water of the tank in?
Answer: 14 hrs
Explanation: Pump rate = 1/2 per hour; net rate with leak = 3/7 per hour; leak rate = 1/2 − 3/7 = 1/14, so it empties the tank in 14 hours.