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977 WorkRate1 |
Name : _________________ |
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27 people can do a job in 10 days. How many days would it take if there were only 9 people? |
21 people can do a job in 6 days. How many days would it take if there were only 3 people? |
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| 977 30 49 24 12 18 ( 133 ) 42 35 50 40 20 ( 187 ) [[ 320 ]] | ||
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