Answer:
Expected return - Portfolio = 11.55%
Explanation:
The expected return on the portfolio is the weighted average of the expected returns of the individual stocks that form up the portfolio. Thus, the formula for the expected return of the portfolio is,
Expected return - Portfolio = rA * wA + rB * wB + ... + rN * wN
Where,
Expected return - Portfolio = 0.09 * 0.35 + 0.15 * 0.2 + 0.12 * 0.45
Expected return - Portfolio = 0.1155 or 11.55%