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400 WorkRate1 |
Name : _________________ |
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20 people can do a job in 7 days. How many days would it take if there were only 4 people? |
24 people can do a job in 9 days. How many days would it take if there were only 8 people? |
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+( ) |
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| 400 35 49 20 32 30 ( 166 ) 27 48 12 30 42 ( 159 ) [[ 325 ]] | ||
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