SOLUTION: 2. A man can do a job in h hours alone and his son can do it in 2h hours alone. Together, how many hours will it take them to do the job?
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Question 794829: 2. A man can do a job in h hours alone and his son can do it in 2h hours alone. Together, how many hours will it take them to do the job?
You can put this solution on YOUR website! A man can do a job in h hours alone and his son can do it in 2h hours alone.
Together, how many hours will it take them to do the job?
:
Let t = the time required when they work together
Let the completed job = 1
:
A shared work equation where:
Each will do a fraction of the job, the two fraction add up to 1 + = 1
multiply equations by 2h, resulting in
2t + t = 2h
3t = 2h
t = h hrs working together
