SOLUTION: if maria paint a house in 4 hours, and john takes 6 hours topaint the same house.. how long will it take to paint the house if both of them work together
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Question 279496: if maria paint a house in 4 hours, and john takes 6 hours topaint the same house.. how long will it take to paint the house if both of them work together Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Maria does 1/4 house per hour.
John does 1/6 per hour.
Each hour, they do the sum.
Add them up, that's how many houses they paint per hour.
Hours per house is the reciprocal of that.
