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Two pipes can fill a tank in 16 hours and 24 hours respectively. A third pipe empties it in 48 hours. How long will it take to fill the tank?

Correct Answer: 16 hours

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Math MCQ: Two pipes can fill a tank in 16 hours and 24 hours respectively. A third pipe empties it in 48 hours. How long will it take to fill the tank? | Extra Education