An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 21â„2 hours to fill the tank. The leak can drain all the water off theÂ tank in how many hours?

An electric pump can fill a tank in 2 hours. Because of a leak in the

1.	An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 21â„2 hours to fill the tank. The leak can drain all the water off theÂ tank in how many hours?
A.	9
B.	10
C.	10.5
D.	11.5
Answer» C. 10.5

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An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 21â„2 hours to fill the tank. The leak can drain all the water off theÂ tank in how many hours?

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An electric pump can fill a tank in 2 hours. Because of a leak in the tank, it was taking 21â„2 hours to fill the tank. The leak can drain all the water off theÂ tank in how many hours?