document.write( "Question 249668: If Sally can paint a house in a 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 #181803 by richwmiller(17219)\"\" \"About 
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What is this a doll house?
\n" ); document.write( "You can't paint a house in 4 hours. There is preparation, sanding, masking, trim.
\n" ); document.write( "in one hour Sally paints 1/4 of the house
\n" ); document.write( "in one hour John paints 1/6 of the house
\n" ); document.write( "add up john's time and sally time together is equal to one
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