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164 WorkRate1 |
Name : _________________ |
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27 people can do a job in 7 days. How many days would it take if there were only 9 people? |
12 people can do a job in 7 days. How many days would it take if there were only 2 people? |
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| 164 21 36 40 42 40 ( 179 ) 42 33 24 48 15 ( 162 ) [[ 341 ]] | ||
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