document.write( "Question 531323: An apprentice carpenter can complete a job in 8 hours. After he has been working on the job for 1 hour, he is joined by a master carpenter and the two finish the job in 2 more hours. How long could it take the master carpenter alone to finish the entire job? \n" ); document.write( "
Algebra.Com's Answer #351074 by lwsshak3(11628)\"\" \"About 
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An apprentice carpenter can complete a job in 8 hours. After he has been working on the job for 1 hour, he is joined by a master carpenter and the two finish the job in 2 more hours. How long could it take the master carpenter alone to finish the entire job?
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\n" ); document.write( "x=hrs master carpenter alone can finish the entire job
\n" ); document.write( "1/x=his work rate
\n" ); document.write( "1/8 = work rate of apprentice
\n" ); document.write( "work done = work rate*hours worked
\n" ); document.write( "1/8*(1)+1/x*(2)=100% of job=1
\n" ); document.write( "1/8+2/x=1
\n" ); document.write( "2/x=1-1/8=7/8
\n" ); document.write( "7x=16
\n" ); document.write( "x=16/7 hrs
\n" ); document.write( "ans:
\n" ); document.write( "Master carpenter alone can finish the entire job in 16/7 hrs
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