Independent solution

How to solve this Cash-Flow and Risk Matching question

Setup

Setup

Let A be the year-one redemption purchased in zeros and B the number of two-year coupon bonds.

A+100B=1000A+100B=1000

Model

Model

Exact matching at year one supplies one equation; the known total purchase cost supplies a second equation.

1783.76=A1.05+B(1001.06+11001.062)1783.76=\frac{A}{1.05}+B\left(\frac{100}{1.06}+\frac{1100}{1.06^2}\right)

Compute

Compute

Solving the pair gives zero redemption 915, and the question asks for its current cost rather than redemption amount.

A=915,B=0.85A=915,\qquad B=0.85

Answer

Answer

Discounting 915 one year at 5% gives 871, which is choice C.

A/1.05=871(C)\boxed{A/1.05=871\quad\text{(C)}}