Answer:
60.56%
Explanation:
Expected return on portfolio is weighted average of return
E(R) = w1 * r1 + w2 * r2
Here, Let assume w1 to be portfolio weight (w2 = 1- w1)
9.50% = w1 * 12.3% + (1 - w1)* 5.2%
9.50% = w1 * 12.3% + 5.2% - w1 * 5.2%
4.30% = 7.10% * w1
w1 = 4.30%/7.10%
w1 = 0.605634
w1 = 60.56%
Hence, the weight of Cromarty in the portfolio should be 60.56%