SOLUTION: Mary can roof her house in 7 days working alone. Her husband can roof their house in 14 days working alone. How long will it take them to roof their house if they work together?
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Question 812424: Mary can roof her house in 7 days working alone. Her husband can roof their house in 14 days working alone. How long will it take them to roof their house if they work together?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Sure she can!!
x/7+x/14=1
3x/14=1
x=14/3
x=4 2/3
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