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773 WorkRate1 |
Name : _________________ |
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28 people can do a job in 12 days. How many days would it take if there were only 7 people? |
21 people can do a job in 7 days. How many days would it take if there were only 3 people? |
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| 773 48 30 18 18 20 ( 134 ) 49 45 49 50 36 ( 229 ) [[ 363 ]] | ||
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