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155 WorkRate1 |
Name : _________________ |
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18 people can do a job in 8 days. How many days would it take if there were only 9 people? |
30 people can do a job in 9 days. How many days would it take if there were only 6 people? |
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| 155 16 18 42 49 45 ( 170 ) 45 27 28 24 16 ( 140 ) [[ 310 ]] | ||
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