303 WorkRate1 |
Name : _________________ |
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9 people can do a job in 6 days. How many days would it take if there were only 3 people? |
49 people can do a job in 6 days. How many days would it take if there were only 7 people? |
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303 18 24 35 12 54 ( 143 ) 42 21 30 30 21 ( 144 ) [[ 287 ]] | ||
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