SOLUTION: 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

Question 643510: 2. If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Add their rates of painting
( 1 house / 4 hrs ) + ( 1 house / 6 hrs ) = 1 house / x hrs

Multiply both sides by

hrs = minutes
Working together, they can paint the house in 2 hrs 24 min
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