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two pipes are used to fill a water tank.The first pipe can fill the tank in 4 hours alone.The two pipes can fill the tank in 2 hours less than the second pipe alone.How long will it take the second pipe to fill the tank alone?​

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Answer:

How long would it take for the second pipe to fill the tank? If you could solve in quadratics, that would be best. Two pipes are used to fill a water storage tank. The first pipe can fill the tank in 4 hours, and the two pipes together can fill the tank in 2 hours less time than the second pipe alone.

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