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740 WorkRate1 |
Name : _________________ |
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42 people can do a job in 12 days. How many days would it take if there were only 7 people? |
12 people can do a job in 5 days. How many days would it take if there were only 3 people? |
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+( ) |
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( )+ |
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++[[ ]]++ |
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| 740 72 22 55 72 24 ( 245 ) 20 42 36 63 84 ( 245 ) [[ 490 ]] | ||
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