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A pipe can fill up a tank in 4 hours. A second pipe can fill up the tank in 3 hours. A third pipe can empty the tank in 5 hours. If all three pipes are open, how long will it take to fill up the tank?
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A pipe can fill up a tank in 4 hours. A second pipe can fill up the tank in 3 hours. A third pipe can empty the tank in 5 hours. If all three pipes are open, how long will it take to fill up the tank? 1.2 hour 3.6 hours 2.6 hours

User Edy Ionescu
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Answer:

the answer would be 2.6 hours

User Osman M Elsayed
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