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290 WorkRate1 |
Name : _________________ |
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21 people can do a job in 12 days. How many days would it take if there were only 3 people? |
12 people can do a job in 10 days. How many days would it take if there were only 3 people? |
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| 290 84 24 25 30 28 ( 191 ) 40 70 30 35 22 ( 197 ) [[ 388 ]] | ||
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