Answer: 16.5% is the average tax rate that will result in a 10 percent increase in tax revenues.
Explanation:
This is an example of static forecasting since no time parameter is involved.
Now,
Let initial revenue be "R" ,
"n" be no. of taxpayer
∴ R= 65000×0.15×n
R +0.1R= 65000×rate×n
Using the above two equation, we'll get ;
r = 16.5%