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344 WorkRate1 |
Name : _________________ |
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15 people can do a job in 12 days. How many days would it take if there were only 3 people? |
21 people can do a job in 6 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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| 344 60 72 32 40 24 ( 228 ) 18 42 84 30 66 ( 240 ) [[ 468 ]] | ||
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