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616 WorkRate1 |
Name : _________________ |
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25 people can do a job in 9 days. How many days would it take if there were only 5 people? |
36 people can do a job in 7 days. How many days would it take if there were only 9 people? |
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| 616 45 42 25 30 30 ( 172 ) 28 42 14 30 35 ( 149 ) [[ 321 ]] | ||
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