Independent solution

How to solve this Bond Valuation question

Setup

Setup

The coupon rate is half the yield, making the annual coupon amount 500 times i.

800=500iami+1000vm=500(1+vm)800=500i\,a_{\overline{m}|\,i}+1000v^m=500(1+v^m)

Model

Model

Use i times the annuity factor equals one minus the terminal discount factor to simplify Bond A's price.

vm=0.6v^m=0.6

Compute

Compute

The derived m-year discount factor is 0.6; cube it for Bond B's three-times-longer term.

PB=500ia3mi+1000v3m=500(1+v3m)P_B=500i\,a_{\overline{3m}|\,i}+1000v^{3m}=500(1+v^{3m})

Answer

Answer

Bond B's price is 608, corresponding to choice C.

PB=500(1+0.63)=608(C)\boxed{P_B=500(1+0.6^3)=608\quad\text{(C)}}