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)![]() ![]() You can put this solution on YOUR website! 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. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |