2)A 20-year, 8% option-free bond with semiannual coupons. The required semiannual-pay yield to maturity on this bond was 8%, but suddenly it drops to 7.25%. Prior to the change in the required yield, what was the price of the bond?
A- 92.64 B- 100 C-107.85
答案是B。我不懂没有给出面值怎么能算价值。
3)几乎是1)和2)的综合:Treasury spot rates semiannual-payyields to maturity are: 6 months=4%, 1 year=5%, 1.5 year=6%. A 1.5 year, 4% Treasury note is trading at 965, the arbitrage-free value is ?