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139 WorkRate1 |
Name : _________________ |
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36 people can do a job in 11 days. How many days would it take if there were only 9 people? |
63 people can do a job in 9 days. How many days would it take if there were only 9 people? |
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| 139 44 12 25 18 36 ( 135 ) 63 24 22 32 28 ( 169 ) [[ 304 ]] | ||
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