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35 people can do a job in 11 days. How many days would it take if there were only 7 people?



42 people can do a job in 9 days. How many days would it take if there were only 7 people?



36 people can do a job in 9 days. How many days would it take if there were only 9 people?



16 people can do a job in 11 days. How many days would it take if there were only 4 people?



4 people can do a job in 6 days. How many days would it take if there were only 2 people?

9 people can do a job in 5 days. How many days would it take if there were only 3 people?



20 people can do a job in 6 days. How many days would it take if there were only 4 people?



42 명의 일꾼들이 어떤일을 끝내는데 12 일이 걸린다. 만일 6 명의 일꾼들이 하면 며칠 걸려 끝내겠는가?



42 people can do a job in 7 days. How many days would it take if there were only 7 people?



12 people can do a job in 10 days. How many days would it take if there were only 2 people?

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