Answer:
Portfolio return = 0.156 or 15.6%
Explanation:
The expected return of a portfolio is the weighted average of the individual stocks returns' that form up the portfolio. For a two stock portfolio, the expected return is calculated as follows,
Portfolio return = wA * rA + wB * rB
Where,
Portfolio return = 0.4 * 0.12 + 0.6 * 0.18
Portfolio return = 0.156 or 15.6%