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817 WorkRate1 |
Name : _________________ |
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28 people can do a job in 11 days. How many days would it take if there were only 7 people? |
49 people can do a job in 9 days. How many days would it take if there were only 7 people? |
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| 817 44 35 22 27 49 ( 177 ) 63 24 40 48 44 ( 219 ) [[ 396 ]] | ||
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