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607 WorkRate1 |
Name : _________________ |
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20 people can do a job in 12 days. How many days would it take if there were only 5 people? |
18 people can do a job in 12 days. How many days would it take if there were only 9 people? |
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| 607 48 50 30 36 49 ( 213 ) 24 20 30 32 55 ( 161 ) [[ 374 ]] | ||
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