The expected return on a portfolio with a beta of 0.7 is 13.4%.
A zero-beta portfolio is a portfolio that is constructed in such a way that its systematic risk or beta is zero.
A zero beta portfolio would have the same expected return as the risk-free rate.
In the given question, we can use the zero beta return in place of the risk free rate in the CAPM equation as follows:
Expected Rate of return = Rf + β (Rm - Rf)
Expected Return = 0.05+ 0.7(0.17-0.05) = 0.134 or 13.4%
