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563 WorkRate1 |
Name : _________________ |
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10 people can do a job in 10 days. How many days would it take if there were only 5 people? |
45 people can do a job in 11 days. How many days would it take if there were only 9 people? |
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| 563 20 42 33 77 14 ( 186 ) 55 16 33 25 20 ( 149 ) [[ 335 ]] | ||
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