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Jack and Fred have to do a certain job. If Jack works alone he can finish the job in 3 hours. If Fred works alone he can finish the job in y hours. The two of them can finish th…

Jack and Fred have to do a certain job. If Jack works alone he can finish the job in 3 hours. If Fred works alone he can finish the job in y hours. The two of them can finish th…
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3 votes
Jack and Fred have to do a certain job. If Jack works alone he can finish the job in 3

hours. If Fred works alone he can finish the job in y hours. The two of them can finish
the job in 2 hours if they work together. What is the value of y?

User Michael Stockerl
by
8.1k points

1 Answer

4 votes

Answer:

y = 6

Explanation:

when they work together, you square the 3 and get 6

User Michael Domashchenko
by
8.4k points
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