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980 WorkRate1 |
Name : _________________ |
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45 people can do a job in 10 days. How many days would it take if there were only 9 people? |
42 people can do a job in 10 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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| 980 50 36 24 70 60 ( 240 ) 60 21 36 66 27 ( 210 ) [[ 450 ]] | ||
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