Question 25608
Working alone Colleen can paint a house in 2 h less than James. Working together, they can paint the house in 10 h. How long would it take James to paint the house by himself?
Let x be the time it takes James to paint the house
So x-2 will be the time Colleen paints the house
so working together;
x+x-2=10
2x-2=10
2x=10+2
2x=12
x=6
So it takes Jmes 6 hrs, so then it takes Colleen;
6-2=4
=)