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799 WorkRate1 |
Name : _________________ |
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42 people can do a job in 7 days. How many days would it take if there were only 7 people? |
9 people can do a job in 9 days. How many days would it take if there were only 3 people? |
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| 799 42 77 55 66 21 ( 261 ) 27 48 10 60 77 ( 222 ) [[ 483 ]] | ||
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