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385 WorkRate1 |
Name : _________________ |
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21 people can do a job in 11 days. How many days would it take if there were only 3 people? |
49 people can do a job in 12 days. How many days would it take if there were only 7 people? |
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| 385 77 44 49 22 42 ( 234 ) 84 40 55 33 21 ( 233 ) [[ 467 ]] | ||
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