Mary Johnson decides to invest $10,000 on financial market. She is allowed to invest on only two stocks IBM and GE if the money is invested in stock market. Mary can also invest on government risk-free security with rate of interest 8%. She can also borrow money at 8%. Using historical data, Mary estimates the following statistics:

IBM GE

Expected Return % 30 15

Variance % 100 25

The correlation between the returns of IBM and GE is estimated to be 0.5. What is the optimal investment strategy for Mary who is risk averse?