Answer:
The maturity risk premium for the security is 1.10%
Explanation:
Consider the provided information.
We need to determine the maturity risk premium on the six-year Treasury security.
It is given that Treasury rate is 7.25 percent for the six-year.
The expected inflation premium will be 2.40 percent in year 3 and beyond.
You expect that real interest rates will be 3.75 percent annually for the foreseeable future.
As we know the nominal interest rates is:

We have given
Nominal interest rate of security = 7.25
IP: Inflation premium of security = 2.40
RIP: Real interest rate of security = 3.75
We need to find MP (Maturity premium of security).
Substituting the respective values we get:



Hence, the maturity risk premium for the security is 1.10%