688 WorkRate1 |
Name : _________________ |
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30 people can do a job in 7 days. How many days would it take if there were only 6 people? |
6 people can do a job in 5 days. How many days would it take if there were only 2 people? |
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688 35 77 44 20 18 ( 194 ) 15 40 42 54 72 ( 223 ) [[ 417 ]] | ||
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