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457 WorkRate1 |
Name : _________________ |
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20 people can do a job in 8 days. How many days would it take if there were only 4 people? |
42 people can do a job in 9 days. How many days would it take if there were only 6 people? |
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| 457 40 30 45 20 72 ( 207 ) 63 24 40 35 12 ( 174 ) [[ 381 ]] | ||
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