# SOLUTION: sally can paint the house in 4 hours and john can paint it in 6 hours. how long will it take the two of them to paint the house together?

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 Question 3221: sally can paint the house in 4 hours and john can paint it in 6 hours. how long will it take the two of them to paint the house together?Found 2 solutions by mixerimaythyme, 303795:Answer by mixerimaythyme(7)   (Show Source): You can put this solution on YOUR website!simpliy, you are finding the average of the two when they both paint a house... in order to find the average, you add 4 hrs with 6 hrs (which gives you 10 hrs), then divide by how many numbers you added, (which in this case is 2)... 10/2=5 Both of them painting a house together only takes about 5 hours according to the problem you had given me... Answer by 303795(595)   (Show Source): You can put this solution on YOUR website!Sally takes 4 hours to paint the house so she paints 1/4 of the house per hour. John takes 6 hours so he paints 1/6 of the house per hour. In one hour they paint 1/4 + 1/6 of the house. To paint the whole house will take 12/5 of an hour ie 2 hours and 24 minutes.