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552 WorkRate1 |
Name : _________________ |
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35 people can do a job in 7 days. How many days would it take if there were only 5 people? |
36 people can do a job in 9 days. How many days would it take if there were only 9 people? |
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| 552 49 22 60 72 28 ( 231 ) 36 63 16 84 77 ( 276 ) [[ 507 ]] | ||
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