Once purchased, bonds can be sold in the secondary market. The value of a bond depends on the prevailing interest rates, which vary over time. Suppose that, in January, 1982 , you bought a 30 -year zero coupon U.S. Treasury bond with a maturity value of $$\$ 100,000$$ and a yield of $15 \%$ annually.
a. How much did you pay for the bond?
b. In January 1999, your bond had 13 years remaining until maturity. Rates on U.S. Treasury bonds of comparable length were about $4.75 \%$. If you sold your bond to an investor looking for a return of $4.75 \%$ annually, how much money would you have received?
c. Using your answers to parts (a) and (b), what was the annual yield on your 17 -year investment?