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401 WorkRate1 |
Name : _________________ |
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12 people can do a job in 9 days. How many days would it take if there were only 4 people? |
56 people can do a job in 11 days. How many days would it take if there were only 8 people? |
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| 401 27 63 18 24 15 ( 147 ) 77 60 12 36 40 ( 225 ) [[ 372 ]] | ||
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