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272 WorkRate1 |
Name : _________________ |
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4 people can do a job in 10 days. How many days would it take if there were only 2 people? |
18 people can do a job in 7 days. How many days would it take if there were only 3 people? |
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| 272 20 30 42 49 54 ( 195 ) 42 27 32 18 30 ( 149 ) [[ 344 ]] | ||
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