5. Assume that you manage a risky portfolio with an expected rate of return of 20% and a standard deviation of 42%. The T-bill rate is 4%.

Your risky portfolio includes the following investments in the given proportions:

Stock A	26	%
Stock B	35
Stock C	39

Your client decides to invest in your risky portfolio a proportion (y) of his total investment budget with the remainder in a T-bill money market fund so that his overall portfolio will have an expected rate of return of 16%.

c. What is the standard deviation of the rate of return on your client's portfolio? (Round your intermediate calculations and final answer to 1 decimal places.)

% per year