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561 WorkRate1 |
Name : _________________ |
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10 people can do a job in 5 days. How many days would it take if there were only 5 people? |
21 people can do a job in 9 days. How many days would it take if there were only 7 people? |
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| 561 10 66 28 32 45 ( 181 ) 27 22 24 20 66 ( 159 ) [[ 340 ]] | ||
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