An inlet pipe can fill an empty tank in 2 hours and an outlet pipe can empty the full tank in 3 hours. In what time will the empty tank get filled, if the inlet and the outlet pipes are opened together?

An inlet pipe can fill an empty tank in 2 hours and an outlet pipe can

1.	An inlet pipe can fill an empty tank in 2 hours and an outlet pipe can empty the full tank in 3 hours. In what time will the empty tank get filled, if the inlet and the outlet pipes are opened together?
A.	3/2 h
B.	3 h
C.	6 h
D.	2 h
Answer» D. 2 h

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An inlet pipe can fill an empty tank in 2 hours and an outlet pipe can empty the full tank in 3 hours. In what time will the empty tank get filled, if the inlet and the outlet pipes are opened together?

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