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

Algebra ->  Rate-of-work-word-problems -> SOLUTION: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?      Log On


   

Question 150250: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4*6/(4+6)
24/10=2.4 HOURS WHEN THEY PAINT THE HOUSE TOGETHER.