document.write( "Question 612656: Pat paints a house in 4 hrs.
\n" ); document.write( "Mary paints a house in 6 hrs.
\n" ); document.write( "How many hours does it take to paint house if the both oaint it together?
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Algebra.Com's Answer #385638 by nerdybill(7384)\"\" \"About 
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Pat paints a house in 4 hrs.
\n" ); document.write( "Mary paints a house in 6 hrs.
\n" ); document.write( "How many hours does it take to paint house if the both oaint it together?
\n" ); document.write( ".
\n" ); document.write( "Let x = time (hours) it takes for both
\n" ); document.write( "then
\n" ); document.write( "x(1/4 + 1/6) = 1
\n" ); document.write( "multiplying both sides by 12:
\n" ); document.write( "x(3 + 2) = 12
\n" ); document.write( "x(5) = 12
\n" ); document.write( "x = 12/5
\n" ); document.write( "x = 2.4 hours
\n" ); document.write( "or
\n" ); document.write( "x = 2 hours and 24 minutes
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