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527 WorkRate1 |
Name : _________________ |
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30 people can do a job in 9 days. How many days would it take if there were only 5 people? |
20 people can do a job in 7 days. How many days would it take if there were only 5 people? |
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| 527 54 84 60 50 27 ( 275 ) 28 42 10 35 56 ( 171 ) [[ 446 ]] | ||
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