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979 WorkRate1 |
Name : _________________ |
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54 people can do a job in 11 days. How many days would it take if there were only 9 people? |
36 people can do a job in 9 days. How many days would it take if there were only 9 people? |
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| 979 66 42 35 55 33 ( 231 ) 36 56 16 48 42 ( 198 ) [[ 429 ]] | ||
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