# Question: Suppose you have a portfolio that has 100 in stock

Suppose you have a portfolio that has $100 in stock A with a beta of 0.9, $400 in stock B with a beta of 1.2, and $300 in the risk-free asset. You have another $200 to invest. You wish to achieve a beta for your whole portfolio to be the same as the market beta. What is the beta of the added security? Give an example of a firm that may have such a beta.

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