SOLUTION: question: jhun can finish an accounting work in 8 hrs. Leo can finish the same work in 6 hrs. After 2 hrs of working together, jhun left Leo for lunch and Leo finished the job. Ho

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Question 490514: question:
jhun can finish an accounting work in 8 hrs. Leo can finish the same work in 6 hrs. After 2 hrs of working together, jhun left Leo for lunch and Leo finished the job. How long does it take Leo to finish the job?

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
----individual---job/hour together
John 8------ 0.13----- 0.29
Leo 6------ 0.17
Together they do 0.29 of the job in one hour
After 2 hours they would complete 0.58 of the job

After 2 hours
Balance job 0.42
Leo does 0.17 job 1 hour
For 0.42 job hw will take 2.5 hours