A water tank is 2/5th full. Inlet A can fill the tank in 12 minutes while an outlet pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?

A water tank is 2/5th full. Inlet A can fill the tank in 12 minutes wh

1.	A water tank is 2/5th full. Inlet A can fill the tank in 12 minutes while an outlet pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?
A.	It fills in 4.8 min
B.	It empties in 4.8 min
C.	It fills in 5.6 min
D.	It empties in 5.6 min
Answer» C. It fills in 5.6 min

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A water tank is 2/5th full. Inlet A can fill the tank in 12 minutes while an outlet pipe B can empty it in 6 minutes. If both the pipes are open, how long will it take to empty or fill the tank completely?

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