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21 people can do a job in 12 days. How many days would it take if there were only 7 people?



28 people can do a job in 10 days. How many days would it take if there were only 7 people?



18 people can do a job in 10 days. How many days would it take if there were only 9 people?



8 people can do a job in 12 days. How many days would it take if there were only 4 people?



12 people can do a job in 7 days. How many days would it take if there were only 2 people?

21 people can do a job in 6 days. How many days would it take if there were only 3 people?



16 people can do a job in 5 days. How many days would it take if there were only 4 people?



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



28 people can do a job in 8 days. How many days would it take if there were only 7 people?



8 people can do a job in 11 days. How many days would it take if there were only 2 people?

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