SOLUTION: Hey, I need you to solve a problem for me, I really don't understand it. The question is: If Sally can paint a house in 4 hours and John in 6 hours, how long will it take for bo

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Hey, I need you to solve a problem for me, I really don't understand it. The question is: If Sally can paint a house in 4 hours and John in 6 hours, how long will it take for bo      Log On


   

Question 213831: Hey,
I need you to solve a problem for me, I really don't understand it.
The question is: If Sally can paint a house in 4 hours and John in 6 hours, how long will it take for both of them to paint the house together?
Thanks
Sumaya.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4*6/(4+6)=24/10=2.4 hrs. ans.