an electric pump can fill a tank in 4 hours. because of a leak in the tank, it took 8 hours to fill the tank. if the tank is full, how much time will the leak take to empty it? Choose the correct choice:
A) 10 hours	B) 12 hours	C) 8 hours	D) 5 hours	E) 15 hours
<gadget id="calculator">8 / 1</gadget>
<output>8</output>

<result>C</result>
an electric pump can fill a tank in 4 hours. because of a leak in the tank, it took 8 hours to fill the tank. if the tank is full, how much time will the leak take to empty it?
divide(8, const_1)
work done by the leak in 1 hour = 1 / 4 - 1 / 8 = 1 / 8 the leak will empty the tank in 8 hours answer is c