A pump can fill a tank with water in 2 hours. Because of a leak, it took hours to fill the tank. The leak can drain all the water of the tank in?
A. hrs
B. 7 hrs
C. 8 hrs
D. 14 hrs
Answer:D
A pump can fill a tank with water in 2 hours. Because of a leak, it took hours to fill the tank. The leak can drain all the water of the tank in?
A. hrs B. 7 hrs C. 8 hrs D. 14 hrs