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There are 720 dishes that need to be rinsed. John can rinse them in 144 minutes by himself. It will take his friend Bob 72
There are 720 dishes that need to be rinsed. John can rinse them in 144 minutes by himself. It will take his friend Bob 72 minutes to rinse these dishes. How long will it take them if they rinse these 720 dishes together?
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solution To solve this problem we can use the workrate formula 1r 1s 1h where r ...
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Introduction to Operations Research
Authors: Frederick S. Hillier, Gerald J. Lieberman
10th edition
978-0072535105, 72535105, 978-1259162985
