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821 WorkRate1 |
Name : _________________ |
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42 people can do a job in 5 days. How many days would it take if there were only 7 people? |
21 people can do a job in 11 days. How many days would it take if there were only 7 people? |
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| 821 30 56 44 45 24 ( 199 ) 33 36 10 60 72 ( 211 ) [[ 410 ]] | ||
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