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139 WorkRate1 |
Name : _________________ |
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54 people can do a job in 9 days. How many days would it take if there were only 9 people? |
15 people can do a job in 11 days. How many days would it take if there were only 5 people? |
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| 139 54 42 36 32 20 ( 184 ) 33 66 49 60 60 ( 268 ) [[ 452 ]] | ||
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