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486 WorkRate1 |
Name : _________________ |
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24 people can do a job in 9 days. How many days would it take if there were only 4 people? |
27 people can do a job in 5 days. How many days would it take if there were only 9 people? |
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| 486 54 70 30 40 30 ( 224 ) 15 72 22 72 42 ( 223 ) [[ 447 ]] | ||
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