SOLUTION: If Sally can paint a house in 4 hours, and Tom can paint it in 6 hours, How long will it take them to paint it together?
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Question 86091: If Sally can paint a house in 4 hours, and Tom can paint it in 6 hours, How long will it take them to paint it together? Answer by Earlsdon(6294) (Show Source):
You can put this solution on YOUR website! If Sally can paint the house in 4 hours, then she can paint 1/4 of the house in 1 hour.
If Tom can paint the house in 6 hours, then he can paint 1/6 of the house in 1 hour.
Together, they can paint (1/4 + 1/6) of the house in 1 hour.
So if together they can paint 5/12 of the house in 1 hour, then it will take them 12/5 hours to paint the entire house. hours
Together, they can paint the house in 2 hours and 24 minutes.
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