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159 WorkRate1 |
Name : _________________ |
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63 people can do a job in 12 days. How many days would it take if there were only 9 people? |
30 people can do a job in 6 days. How many days would it take if there were only 6 people? |
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| 159 84 30 60 30 35 ( 239 ) 30 10 15 16 10 ( 81 ) [[ 320 ]] | ||
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