642 WorkRate1 |
Name : _________________ |
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36 people can do a job in 12 days. How many days would it take if there were only 6 people? |
48 people can do a job in 7 days. How many days would it take if there were only 8 people? |
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642 72 84 44 20 30 ( 250 ) 42 60 28 21 30 ( 181 ) [[ 431 ]] | ||
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