document.write( "Question 232515: 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? \n" ); document.write( "
Algebra.Com's Answer #171805 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 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? \n" ); document.write( "------------- \n" ); document.write( "S paints 1/4 house per hour. \n" ); document.write( "J paints 1/6 per hour. \n" ); document.write( "Together, they paint 1/4 + 1/6 per hour = 5/12 per hour. \n" ); document.write( "--> 12/5 hours/house \n" ); document.write( "= 2.4 hours \n" ); document.write( " \n" ); document.write( " |