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817 WorkRate1 |
Name : _________________ |
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21 people can do a job in 10 days. How many days would it take if there were only 7 people? |
24 people can do a job in 5 days. How many days would it take if there were only 4 people? |
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+( ) |
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( )+ |
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++[[ ]]++ |
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| 817 30 44 49 24 60 ( 207 ) 30 15 60 36 28 ( 169 ) [[ 376 ]] | ||
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