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36 people can do a job in 5 days. How many days would it take if there were only 6 people?



42 people can do a job in 12 days. How many days would it take if there were only 6 people?



16 people can do a job in 8 days. How many days would it take if there were only 4 people?



20 people can do a job in 7 days. How many days would it take if there were only 4 people?



15 people can do a job in 6 days. How many days would it take if there were only 5 people?

6 people can do a job in 8 days. How many days would it take if there were only 2 people?



48 people can do a job in 12 days. How many days would it take if there were only 8 people?



10 명의 일꾼들이 어떤일을 끝내는데 6 일이 걸린다. 만일 5 명의 일꾼들이 하면 며칠 걸려 끝내겠는가?



18 people can do a job in 7 days. How many days would it take if there were only 3 people?



30 people can do a job in 10 days. How many days would it take if there were only 5 people?

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