It takes a pump two hours to fill a tank with water. It took 2 hours to fill the tank due to a leak. The leak has the potential to drain the whole contents of the tank into:
A. 4 1/3hours
B. 7 hours
C. 8 hours
D. 14 hours
Answer:D
It takes a pump two hours to fill a tank with water. It took 2 hours to fill the tank due to a leak. The leak has the potential to drain the whole contents of the tank into:
A. 4 1/3hours B. 7 hours C. 8 hours D. 14 hours
Explanation: 1 hour of work done by the leak = 1/2 - 3/7 = 1/14,In 14 hours, Leak will have emptied the tank.