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839 WorkRate1 |
Name : _________________ |
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21 people can do a job in 11 days. How many days would it take if there were only 7 people? |
24 people can do a job in 5 days. How many days would it take if there were only 4 people? |
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| 839 33 36 18 22 36 ( 145 ) 30 36 48 21 40 ( 175 ) [[ 320 ]] | ||
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