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723 WorkRate1 |
Name : _________________ |
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18 people can do a job in 12 days. How many days would it take if there were only 6 people? |
42 people can do a job in 11 days. How many days would it take if there were only 7 people? |
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| 723 36 42 40 77 18 ( 213 ) 66 48 20 15 30 ( 179 ) [[ 392 ]] | ||
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