An equity has a beta of 1.35 and an expected return of 16 per cent. A risk-free asset currently earns 4.8 per cent.

(a) What is the expected return on a portfolio that is equally invested in the two assets?

(b) If a portfolio of the two assets has a beta of 0.95, what are the portfolio weights?

(c) If a portfolio of the two assets has an expected return of 8 per cent, what is its beta?

(d) If a portfolio of the two assets has a beta of 2.70, what are the portfolio weights? How do you interpret the weights for the two assets in this case? Explain.