SOLUTION: 1 painter can paint a house in 12 hours. Another painter can paint a house in 8 hours. How much time will it take for both painters to paint the house together?
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Question 903750: 1 painter can paint a house in 12 hours. Another painter can paint a house in 8 hours. How much time will it take for both painters to paint the house together?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
1/a+1/b=1/x
1/8+1/12=1/x
1/8+1/12=1/4.8
1/x=1/4.8
x=4.8 days working together
check
1/a+1/b=1/x
1/8+1/12=1/x
12/96+8/96=1/x
20/96=1/x
96/20=x
x=4.8 days working together
ok
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