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774 WorkRate1 |
Name : _________________ |
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21 people can do a job in 5 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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| 774 15 20 63 14 60 ( 172 ) 49 24 48 36 40 ( 197 ) [[ 369 ]] | ||
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