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842 WorkRate1 |
Name : _________________ |
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21 people can do a job in 9 days. How many days would it take if there were only 7 people? |
54 people can do a job in 6 days. How many days would it take if there were only 9 people? |
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| 842 27 18 24 49 20 ( 138 ) 36 33 66 22 35 ( 192 ) [[ 330 ]] | ||
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