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318 WorkRate1 |
Name : _________________ |
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9 people can do a job in 7 days. How many days would it take if there were only 3 people? |
27 people can do a job in 9 days. How many days would it take if there were only 9 people? |
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| 318 21 20 28 40 33 ( 142 ) 27 36 18 30 20 ( 131 ) [[ 273 ]] | ||
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