Question
The average age of a group of doctors and teachers is 49. If the average age of the doctors is 47 years and that of the teachers is 55 years, what is the ratio of the number of doctors to teachers?
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The average age of a group of doctors and teachers is 49. If the average age of the doctors is 47 years and that of the teachers is 55 years, what is the ratio of the number of doctors to teachers?