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754 WorkRate1 |
Name : _________________ |
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42 people can do a job in 9 days. How many days would it take if there were only 7 people? |
21 people can do a job in 7 days. How many days would it take if there were only 7 people? |
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+( ) |
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( )+ |
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++[[ ]]++ |
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| 754 54 84 20 35 24 ( 217 ) 21 60 18 42 35 ( 176 ) [[ 393 ]] | ||
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