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720 WorkRate1 |
Name : _________________ |
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18 people can do a job in 10 days. How many days would it take if there were only 6 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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| 720 30 42 40 44 60 ( 216 ) 60 42 20 15 24 ( 161 ) [[ 377 ]] | ||
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