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480 WorkRate1 |
Name : _________________ |
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8 people can do a job in 10 days. How many days would it take if there were only 4 people? |
48 people can do a job in 12 days. How many days would it take if there were only 8 people? |
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+( ) |
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( )+ |
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++[[ ]]++ |
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| 480 20 33 42 49 50 ( 194 ) 72 10 20 21 30 ( 153 ) [[ 347 ]] | ||
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