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Comparison of Speeds

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It takes a computer 8 days to print all of the personalized letters for a national sweepstakes. A new computer is purchased that can do the same job in 5 days. How long would it take to do the job with both computers working on it?

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Solution Summary

The solution explains how time (in days) is calculated in the shared work problem.

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For the old computer, everyday it can print 1/8 of the total work,
for ...

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