Suppose you hold a portfolio consisting of a $10,000 investment in each of 10 different common stocks. The portfolios beta is 1.25. Now suppose you decided to make two changes to your portfolio as follows: a) sell stock X that has a beta of 1.0 and replace it with stock Y that has a beta od 1.5, and

b) sell stock W that has a beta of 1.2 and replace it with stock Z that has a beta of 2.1. What would the portfolios new beta be after you make the two changes?

NOTE: please make the answer clear with specific numbers