Answer:
Risk Premium is 10%
Step-by-step explanation:
Government treasuries represent risk free rate of return.
[tex]Risk Premium=R_{m}-R_{f}/tex] ,
where, [tex]R_{f} = Risk\ Free\ Rate\ Of\ Return/[tex]
[tex]R_{m} = Market\ Rate\ Of\ Return/[tex]
Risk Premium = 15 - 5 = 10%
Risk Premium is defined as return earned on market portfolio in excess of rate of return earned on risk free assets such as government treasury bonds.
So, Risk Premium refers to the compensation an investor expects to earn for assuming higher risk by investing in market portfolio instead of investing his money in risk free class of assets.