Pipe A can fill a tank in 16 minutes and pipe B cam empty... — Answer & Explanation | PrepBeePakistan

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MEDIUMENGLISHMathematics

Pipe A can fill a tank in 16 minutes and pipe B cam empty it in 24 minutes. If both the pipes are opened together after how many minutes should pipe B be closed, so that the tank is filled in 30 minutes?

Correct answer: D

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