document.write( "Question 404458: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together? \n" ); document.write( "
Algebra.Com's Answer #285805 by robertb(5830)\"\" \"About 
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\"x%281%2F4+%2B+1%2F6%29+=+1\"
\n" ); document.write( "<==> \"5x%2F12+=+1\"
\n" ); document.write( "==> x = 2.4 hours, working together.
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