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647 WorkRate1 |
Name : _________________ |
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30 people can do a job in 6 days. How many days would it take if there were only 6 people? |
36 people can do a job in 12 days. How many days would it take if there were only 9 people? |
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| 647 30 70 50 60 24 ( 234 ) 48 77 24 60 77 ( 286 ) [[ 520 ]] | ||
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