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139 WorkRate1 |
Name : _________________ |
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27 people can do a job in 12 days. How many days would it take if there were only 9 people? |
42 people can do a job in 7 days. How many days would it take if there were only 6 people? |
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| 139 36 20 18 20 36 ( 130 ) 49 44 55 40 24 ( 212 ) [[ 342 ]] | ||
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