Question
The average age of a group of plumbers and doctors is 53. If the average age of the plumbers is 48 years and that of the doctors is 63 years, what is the ratio of the number of doctors to plumbers?
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The average age of a group of plumbers and doctors is 53. If the average age of the plumbers is 48 years and that of the doctors is 63 years, what is the ratio of the number of doctors to plumbers?