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630 WorkRate1 |
Name : _________________ |
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30 people can do a job in 9 days. How many days would it take if there were only 6 people? |
36 people can do a job in 7 days. How many days would it take if there were only 9 people? |
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| 630 45 35 20 30 33 ( 163 ) 28 42 63 60 42 ( 235 ) [[ 398 ]] | ||
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