SOLUTION: If Colleen were to paint her living room alone, it would take 4
hours. Her sister Evelyn could do the job in 7
hours. How long would it take them working together? If needed, sub
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Question 1075649: If Colleen were to paint her living room alone, it would take 4
hours. Her sister Evelyn could do the job in 7
hours. How long would it take them working together? If needed, submit your answer as a fraction reduced to lowest terms.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If Colleen were to paint her living room alone, it would take 4
hours. Her sister Evelyn could do the job in 7
hours. How long would it take them working together?
----------
Colleen paints 1/4 of the LR per hour.
Evelyn paints 1/7 of the LR per hour.
---
Together, they paint 1/4 + 1/7 per hour.
Can you do the rest?
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