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3 years ago

7

An Advertising firm has an old computer that can prepare a whole mailing in 6 hours. With the help of newer model the job is com

plete in 2 hours. How long would it take the newer model to do the job alone?

1 answer:

tiny-mole [99]3 years ago

5 0

Answer:

It would only take three hours.

Step-by-step explanation:

1/6+1/x=1/2

x + 6=3x

6=2x

x=3hr

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