Question
The average age of a group of plumbers and engineers is 50. If the average age of the plumbers is 47 years and that of the engineers is 59 years, what is the ratio of the number of plumbers to engineers?
2 m

Click button first when a symbol is required. X

The average age of a group of plumbers and engineers is 50. If the average age of the plumbers is 47 years and that of the engineers is 59 years, what is the ratio of the number of plumbers to engineers?