document.write( "Question 151722: Sally paints a house in 4 hours, John can paint the same house in 6 hours, how long will it take for Sally and John to paint the house together? \n" ); document.write( "
Algebra.Com's Answer #111532 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
4*6/(4+6)=24/10=2.4 hours when they work together. \n" ); document.write( "
\n" );