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313 WorkRate1 |
Name : _________________ |
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12 people can do a job in 10 days. How many days would it take if there were only 3 people? |
21 people can do a job in 9 days. How many days would it take if there were only 3 people? |
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| 313 40 40 20 18 49 ( 167 ) 63 20 72 28 32 ( 215 ) [[ 382 ]] | ||
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