SOLUTION: When working alone, Bill can clean the house in 8 hours and Mary can clean in 4 hours. If they work together, how long should it take them.
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Question 862092: When working alone, Bill can clean the house in 8 hours and Mary can clean in 4 hours. If they work together, how long should it take them.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
1/8+1/4=1/x
1/8+2/8=1/x
3/8=1/x
x=8/3
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