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109 WorkRate1 |
Name : _________________ |
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18 people can do a job in 9 days. How many days would it take if there were only 9 people? |
30 people can do a job in 7 days. How many days would it take if there were only 6 people? |
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| 109 18 27 42 36 49 ( 172 ) 35 24 35 42 72 ( 208 ) [[ 380 ]] | ||
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