SOLUTION: It takes Bill 4 hours to paint a house and it takes Charlie 6 hours to paint the same house. If they both paint the same house together how long would it take.

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Question 390807: It takes Bill 4 hours to paint a house and it takes Charlie 6 hours to paint the same house. If they both paint the same house together how long would it take.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
x%281%2F4+%2B+1%2F6%29+=+1 ===> x = 2.4 hours together.