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390 WorkRate1 |
Name : _________________ |
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6 people can do a job in 7 days. How many days would it take if there were only 3 people? |
42 people can do a job in 6 days. How many days would it take if there were only 7 people? |
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| 390 14 36 77 72 24 ( 223 ) 36 84 10 21 36 ( 187 ) [[ 410 ]] | ||
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