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417 WorkRate1 |
Name : _________________ |
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20 people can do a job in 8 days. How many days would it take if there were only 4 people? |
12 people can do a job in 6 days. How many days would it take if there were only 4 people? |
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| 417 40 30 32 20 30 ( 152 ) 18 24 35 45 30 ( 152 ) [[ 304 ]] | ||
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