document.write( "Question 150250: 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 #110249 by checkley77(12844)\"\" \"About 
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4*6/(4+6)
\n" ); document.write( "24/10=2.4 HOURS WHEN THEY PAINT THE HOUSE TOGETHER.
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