SOLUTION: If jan can paint a house in 4 hours and jim can paint a house in 6 hours, how long will it take for them to paint the house together.

Question 191866: If jan can paint a house in 4 hours and jim can paint a house in 6 hours, how long will it take for them to paint the house together.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
If jan can paint a house in 4 hours and jim can paint a house in 6 hours, how long will it take for them to paint the house together.
.
Let x = hours for both to paint house
then
x(1/4 + 1/6) = 1
x/4 + x/6) = 1
6x + 4x = 24
10x = 24
x = 2.4 hours
or
2 hours and 24 minutes

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