415 WorkRate1 |
Name : _________________ |
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12 people can do a job in 9 days. How many days would it take if there were only 4 people? |
56 people can do a job in 9 days. How many days would it take if there were only 8 people? |
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415 27 32 16 20 66 ( 161 ) 63 36 45 18 32 ( 194 ) [[ 355 ]] | ||
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