SOLUTION: The big man could do 1/3 of a job in 4 hours. The little man could do 1/2 of the job in 2 hours. If the little man needed to complete 30 jobs and worked for 2 hours alone and then

Question 514762: The big man could do 1/3 of a job in 4 hours. The little man could do 1/2 of the job in 2 hours. If the little man needed to complete 30 jobs and worked for 2 hours alone and then was joined by the big man, how long did it take both of them to finish the remaining jobs?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The big man can do 1/3 of a job in 4 hours
To do 3 times this amount of work, takes
him 3 times as long
So to do job takes hrs
---------------
The little man can do 1/2 a job in 2 hrs
and also job in 4 hrs
So there is jobs left to do
Now the big man joins him
------------
Add their rates of working to get their rate
working together

Multiply both sides by

It takes them 88 and 1/2 hrs to finish the jobs
working together
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