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407 WorkRate1 |
Name : _________________ |
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20 people can do a job in 8 days. How many days would it take if there were only 4 people? |
12 people can do a job in 6 days. How many days would it take if there were only 4 people? |
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++[[ ]]++ |
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| 407 40 30 32 24 30 ( 156 ) 18 27 42 50 33 ( 170 ) [[ 326 ]] | ||
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