Question
The average age of a group of electricians and plumbers is 47. If the average age of the electricians is 43 years and that of the plumbers is 55 years, what is the ratio of the number of electricians to plumbers?
2 m

Click button first when a symbol is required. X

The average age of a group of electricians and plumbers is 47. If the average age of the electricians is 43 years and that of the plumbers is 55 years, what is the ratio of the number of electricians to plumbers?