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322 WorkRate1 |
Name : _________________ |
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21 people can do a job in 7 days. How many days would it take if there were only 3 people? |
12 people can do a job in 6 days. How many days would it take if there were only 3 people? |
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| 322 49 22 24 36 28 ( 159 ) 24 36 18 30 22 ( 130 ) [[ 289 ]] | ||
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