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570 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? |
36 people can do a job in 8 days. How many days would it take if there were only 9 people? |
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| 570 54 42 25 30 36 ( 187 ) 32 56 18 30 49 ( 185 ) [[ 372 ]] | ||
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