SOLUTION: A painter Can finish painting a house in 4 hours. Her assistant takes 6 hours to finish the same job. How long would it take for them to complete the job if thety worke together?
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Question 387139: A painter Can finish painting a house in 4 hours. Her assistant takes 6 hours to finish the same job. How long would it take for them to complete the job if thety worke together?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
each does some FRACTION of the job based on their individual rate
the fractions sum to one (the WHOLE job)
(x / 4) + (x / 6) = 1
3x + 2x = 12
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