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 #376853 by edjones(8007)\"\" \"About 
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The carpenter can do 1/5 the job in 1 hr.
\n" ); document.write( "2/5 the job done in 2 hrs. 1 - 2/5 = 3/5 of the job remains.
\n" ); document.write( "1/5 + a = 3/5 in one hr.
\n" ); document.write( "a = 2/5
\n" ); document.write( "The assistant working alone would take 5/2 = 2.5 hrs to do the job.
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