SOLUTION: Bob can paint a house in 4 days. Sam can paint the same house in 5 days. How many will it take to paint the house if they work together?
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Question 455501: Bob can paint a house in 4 days. Sam can paint the same house in 5 days. How many will it take to paint the house if they work together? Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! 1/4+1/5=1/t
5/20+4/20=1/t
9/20=1/t
9t=20
t=20/9
It will take them 20/9ths days to paint the house together..
