Answer: 28.57%
Explanation:
Average return given the variables will be;
[tex]Average rate of return = \frac{Annual net income}{Average investment}[/tex]
Average rate of return = [tex]\frac{1,000,000}{\frac{7,000,000}{2} }[/tex]
Average rate of return = 1,000,000/3,500,000
Average rate of return = 28.57%