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839 WorkRate1 |
Name : _________________ |
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49 people can do a job in 12 days. How many days would it take if there were only 7 people? |
40 people can do a job in 10 days. How many days would it take if there were only 8 people? |
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| 839 84 16 21 33 48 ( 202 ) 50 45 15 10 20 ( 140 ) [[ 342 ]] | ||
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