Two pipes A and B can fill a tank in 24 and 32 min, respectively. If both the pipes are opened together, after how much time pipe B should be closed so that the tank is full in 9 min?

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Accepted Answer

Here, A = 24 min, B = 32, T = 9 min ∴ Required time = B(1 - T/A ) = 32 ( 1 - 9/24 ) = 32 x 15/24 = 20 min.

Two pipes A and B can fill a tank in 24 and 32 min, respectively. If both the pipes are opened together, after how much time pipe B should be closed so that the tank is full in 9 min?

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