SOLUTION: Jake can complete a job in 5 hours while Jerry can complete the same job in 3 hours. How long would it take to complete the job if both Jerry and Jake worked together?

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Question 622557: Jake can complete a job in 5 hours while Jerry can complete the same job in 3 hours. How long would it take to complete the job if both Jerry and Jake worked together?
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


If A can do a job in x time periods, then A can do of the job in 1 time period. Likewise, if B can do the same job in y time periods, then B can do of the job in 1 time period.

So, working together, they can do



of the job in 1 time period.

Therefore, they can do the whole job in:



time periods.

John

My calculator said it, I believe it, that settles it
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