document.write( "Question 594695: A carpenter can complete a certain job in 5 hours. After working on the job for 2 hours, an assistant helped finished the job. Together they completed the job in 1 hour. How long might it take the assistant, working alone, to complete a job similar to this one? \n" ); document.write( "
Algebra.Com's Answer #376860 by lwsshak3(11628)\"\" \"About 
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A carpenter can complete a certain job in 5 hours. After working on the job for 2 hours, an assistant helped finished the job. Together they completed the job in 1 hour. How long might it take the assistant, working alone, to complete a job similar to this one?
\n" ); document.write( "**
\n" ); document.write( "let x=hours assistant might take to complete the job working alone.
\n" ); document.write( "1/x=assistant work rate
\n" ); document.write( "1/5=Given carpenter's work rate
\n" ); document.write( "..
\n" ); document.write( "Carpenter worked 3 hours on the job or completed 3*1/5=3/5 of the job
\n" ); document.write( "Assistant worked 1 hour on the job or completed 1*1/x=1/x of the job
\n" ); document.write( "..
\n" ); document.write( "3/5+1/x=100% of the job=1
\n" ); document.write( "1/x=1-3/5
\n" ); document.write( "=5/5-3/5
\n" ); document.write( "=2/5
\n" ); document.write( "x=5/2
\n" ); document.write( "ans:
\n" ); document.write( "hours assistant might take to complete the job working alone=2.5 \n" ); document.write( "
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