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?
Algebra ->
Rate-of-work-word-problems
-> 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?
Log On
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
