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Lyle can paint a room in 3 hours. Selena can paint a room with the same dimensions in 2 hours. If they work together, how many hours does it take them to paint the room? Round your answer to the nearest
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Apr 4, 2017
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Lyle can paint a room in 3 hours. Selena can paint a room with the same dimensions in 2 hours. If they work together, how many hours does it take them to paint the room? Round your answer to the nearest tenth?
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The rate at which they paint together is 1 room per two hours plus one room per three hours. (1/2)+(1/3) = (3/6)+(2/6) = (5/6) hours, or 50 minutes.
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