document.write( "Question 1173832: It takes Doug 3 days to reroof a house. If Doug's son helps him, the job can be completed in 2 days. How long would it take Doug's son, working alone, to do the job? \n" ); document.write( "

Algebra.Com's Answer #799145 by josgarithmetic(39616) $\"\"$ $\"About$

You can put this solution on YOUR website!
Doug, $\"1%2F3\"$
\n" ); document.write( "Son, $\"1%2Fn\"$
\n" ); document.write( "Doug+Son, $\"1%2F2\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"1%2F3%2B1%2Fn=1%2F2\"$ \r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( " $\"1%2F2-1%2F3=1%2Fn\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"3%2F6-2%2F6=1%2Fn\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"1%2F6=1%2Fn\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28n=6%29\"$
\n" ); document.write( " \n" ); document.write( "

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