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640 WorkRate1 |
Name : _________________ |
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30 people can do a job in 6 days. How many days would it take if there were only 6 people? |
6 people can do a job in 6 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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| 640 30 84 48 30 18 ( 210 ) 18 45 49 60 30 ( 202 ) [[ 412 ]] | ||
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