Independent solution

How to solve this Annuities and Perpetuities question

Setup

Setup

Separate the ten level beginning-of-year payments from the growing tail that starts with the eleventh payment.

PV1=Xa¨100.05=8.10782XPV_1=X\ddot a_{\overline{10}|\,0.05}=8.10782X

Model

Model

The first block is an annuity-due; the tail is a deferred growing perpetuity with growth below the valuation rate.

PV2=X1.015v1011.015v=18.69366XPV_2=X\frac{1.015\,v^{10}}{1-1.015v}=18.69366X

Compute

Compute

Their combined factor is 26.80148, so the stated price implies a level amount of about 1,679.

45000=(8.10782+18.69366)XX=167945000=(8.10782+18.69366)X\Longrightarrow X=1679

Answer

Answer

The matching listed amount is 1,679, choice A.

X1679(A)\boxed{X\approx1679\quad\text{(A)}}