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QBen can paint a kitchen in 5 hours

Ben can paint a kitchen in 5 hours. Courtney can paint the same room in 6 hours. How long will it take them, working together, to paint the kitchen?

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#1JoycelynAnswered at 2013-03-09 14:56:42
1/5+1/6=1/x (6+5)/5*6)=1/x 11/30=1/x 11x=30 x=30/11 x=2.7 hours working togeter.
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