Question
The average age of a group of lawyers and plumbers is 42. If the average age of the lawyers is 40 years and that of the plumbers is 52 years, what is the ratio of the number of plumbers to lawyers?
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The average age of a group of lawyers and plumbers is 42. If the average age of the lawyers is 40 years and that of the plumbers is 52 years, what is the ratio of the number of plumbers to lawyers?