ReneeK28371 ReneeK28371

13-10-2022
Mathematics

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Two pipes, a and b, are used to fill a water tank. the empty tank is filled in two hours if the two pipes are used together. if pipe a alone is used for 6 hours and then turned off, pipe b will take over and finish filling the tank in 18 hours. how long will it take each pipe alone to fill the tank?

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