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672 WorkRate1 |
Name : _________________ |
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30 people can do a job in 9 days. How many days would it take if there were only 6 people? |
4 people can do a job in 9 days. How many days would it take if there were only 2 people? |
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+( ) |
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( )+ |
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++[[ ]]++ |
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| 672 45 42 21 36 24 ( 168 ) 18 60 60 25 48 ( 211 ) [[ 379 ]] | ||
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