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660 WorkRate1 |
Name : _________________ |
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36 people can do a job in 8 days. How many days would it take if there were only 6 people? |
54 people can do a job in 9 days. How many days would it take if there were only 9 people? |
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+( ) |
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( )+ |
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++[[ ]]++ |
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| 660 48 21 60 49 20 ( 198 ) 54 21 12 56 18 ( 161 ) [[ 359 ]] | ||
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