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485 WorkRate1 |
Name : _________________ |
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8 people can do a job in 7 days. How many days would it take if there were only 4 people? |
25 people can do a job in 6 days. How many days would it take if there were only 5 people? |
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+( ) |
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( )+ |
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| 485 14 21 66 54 44 ( 199 ) 30 20 30 18 24 ( 122 ) [[ 321 ]] | ||
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