A pipe can fill a tank in 10 hours. Due to the leak in its bottom, the tank is filled in 12 hours. If the tank is full, then that leak can empty the tank in how many hours?

A pipe can fill a tank in 10 hours. Due to the leak in its bottom, the

1.	A pipe can fill a tank in 10 hours. Due to the leak in its bottom, the tank is filled in 12 hours. If the tank is full, then that leak can empty the tank in how many hours?
A.	30
B.	45
C.	60
D.	42
Answer» D. 42

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A pipe can fill a tank in 10 hours. Due to the leak in its bottom, the tank is filled in 12 hours. If the tank is full, then that leak can empty the tank in how many hours?

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