How will long it take to empty the tank if both the inlet pipe P1 and the outlet pipe P2 are opened simultaneously?(i)

How will long it take to empty the tank if both the inlet pipe P1 and

1.	How will long it take to empty the tank if both the inlet pipe P1 and the outlet pipe P2 are opened simultaneously?(i)
A.	8 minutes
B.	12 minutes
C.	16 minutes
D.	15 minutes
Answer» D. 15 minutes

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How will long it take to empty the tank if both the inlet pipe P1 and the outlet pipe P2 are opened simultaneously?(i)

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