SOLUTION: I am having trouble setting up this problem. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to pain

Question 206889: I am having trouble setting up this problem.
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?

Found 2 solutions by jim_thompson5910, Alan3354:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
This question has been answered many times before. Check out this previous solution or this other previous solution.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
There's a shortcut, product/sum
6*4/(6+4) = 24/10
= 2.4 hours
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