Suppose the call and put date is three years from now. What is the yield to worst of a bond that

will mature in six years, has maturity value of $$1000,$ coupon rate of $4\%,$ pays coupon semi$-$

annually, current price of $$863\mathrm{.}91,$ call price of $$913\mathrm{.}61,$ and put price of $$936\mathrm{.}80?(10$pt$)$

A bond portfolio has the following cash flows. Its market value is $$1023\mathrm{.}51.$ What is the yield

on the bond portfolio? $(10$pt$)$