This Exam FM sample reference tests Annuities. The ten payments form a finite geometric stream with payment growth 15% and discount rate 5%. Direct valuation gives 1483.62, so choice E is correct.
These notes identify the calculation error associated with each wrong letter when that error is reproducible.
AChoice A (597) does not satisfy the ten-term geometric cash-flow present-value sum at 5%; no distinct standard one-step error is identifiable.
BChoice B (772) does not satisfy the ten-term geometric cash-flow present-value sum at 5%; no distinct standard one-step error is identifiable.
CChoice C (1040) does not satisfy the ten-term geometric cash-flow present-value sum at 5%; no distinct standard one-step error is identifiable.
DChoice D (1247) does not satisfy the ten-term geometric cash-flow present-value sum at 5%; no distinct standard one-step error is identifiable.
Original practice · fully worked
Original variant: payment growth rate recovered from a finite annuity price
A six-payment annuity pays 500 at year 1, and each later payment grows by the same annual rate g. At a 4% annual yield, its present value is 2816.16. Calculate g.
A 2.55%
B 2.70%
C 2.85%
D 3.00%
E 3.15%
Variant answer in brief
Equating the six-term geometric payment stream to the quoted price and solving for its common growth rate gives 3.00%, choice D.
Setup
Setup
Write all six payments from the unknown common growth rate.
Pk=500(1+g)k−1,k=1,…,6
Model
Model
Set their discounted value at 4% equal to the quoted price.
2816.16=k=1∑6(1.04)k500(1+g)k−1
Compute
Compute
The economically relevant root is g = 3.0000%.
g=0.0300000000
Answer
Answer
The annual payment growth rate is 3.00%, selecting choice D.
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