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833 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 7 people? |
24 people can do a job in 12 days. How many days would it take if there were only 4 people? |
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| 833 33 36 18 20 36 ( 143 ) 72 33 55 18 36 ( 214 ) [[ 357 ]] | ||
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