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Two pipes carry water to the same tank. Pipe A can fill the tank in 6 hours. Pipe B can fill the tank in 4 hours. If both pipes are used simultaneously, how long will it take to fill the tank?
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by Sedric002 at June 09, 2011

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Sedric -The equation is:(1 tank) / (6 hours) + (1 tank) / (4 hours) = (1 tank) / x hours)Solve for xHope that helps

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Steve204 June 09, 2011