A pipe can fill a tank in 15hrs. Due to leak in the bottom, it is fill – McqOptions

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1.	A pipe can fill a tank in 15hrs. Due to leak in the bottom, it is filled in 20 hrs. If the tank is full, how much time will the leak take to empty it?
A.	55 hrs
B.	60 hrs
C.	61 hrs
D.	None
Answer» B. 60 hrs

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