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797 WorkRate1 |
Name : _________________ |
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21 people can do a job in 6 days. How many days would it take if there were only 7 people? |
18 people can do a job in 9 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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| 797 18 28 77 14 60 ( 197 ) 54 15 20 36 33 ( 158 ) [[ 355 ]] | ||
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