IC28 Mock Test Sample 10

Annuities and perpetuities are important financial concepts used to calculate present and accumulated values of regular payments. Different forms include immediate annuities, annuity due, increasing annuities, decreasing annuities, and perpetuities in arithmetic or geometric progression. Calculations depend on interest rates, payment timing, and compounding frequency. Variable annuities involve changing payments, while perpetuities continue indefinitely. Problems often require splitting periods when interest rates change and using effective rates for monthly, quarterly, or half-yearly payments. Understanding formulas involving a n ∣ ​ , s n ∣ ​ , increasing/decreasing annuities, and perpetuities helps solve investment, pension, bond, and loan valuation problems efficiently.

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Q1. The accumulated value of a decreasing immediate annuity is related to:

a) n(1+i)n/snn(1+i)^n/s_{\overline{n}|}
b) 1/i21/i^2
c) ana_{\overline{n}|} only
d) vnv^n only


Q2. The accumulated value of a decreasing annuity due involves:

a) 1/d21/d^2
b) sns_{\overline{n}|} only
c) Immediate annuity formula only
d) Discount factor only


Q3. For a perpetuity in arithmetic progression where first payment is AA and increase is DD, valuation depends on:

a) Arithmetic progression formula
b) Simple interest only
c) Equal payments throughout
d) Discounting one payment only


Q4. For a GP perpetuity with Rv<1|Rv| < 1, the present value equals:

a) Av/(1Rv)Av/(1-Rv)
b) A/iA/i
c) A/(1R)A/(1-R)
d) A/RA/R


Q5. In Exercise 3.1 Q.1, an annuity of 10 payments of Rs. 450 each is valued using:

a) 450a10450a_{\overline{10}|}
b) 450s10450s_{\overline{10}|}
c) 450×10450 \times 10
d) Discount factor only


Q6. In Exercise 3.1 Q.3(i), for an immediate perpetuity of Rs. 150 p.a., the valuation involves:

a) 150a150a_{\overline{\infty}|}
b) 150/0.08150/0.08
c) 150×3150 \times 3
d) 150/0.08×1.08150/0.08 \times 1.08


Q7. In Exercise 3.1 Q.4, present value of Rs. 20 p.a. payable yearly requires:

a) Computing effective yearly rate
b) Using 7% directly
c) Using half-yearly rate
d) Using 14% effective rate


Q8. In Exercise 3.1 Q.5, the amount of immediate annuity involves:

a) (1.02)21=0.0404(1.02)^2 - 1 = 0.0404
b) 0.04
c) 0.08
d) 0.02


Q9. In Exercise 3.1 Q.6, an annuity due of Rs. 600 p.a. payable twice yearly uses:

a) (1.01)31=0.030301(1.01)^3 -1 = 0.030301
b) 0.03
c) 0.06
d) 0.06/2


Q10. In Exercise 3.1 Q.7, present value of immediate annuity involves:

a) (1.04)1/61(1.04)^{1/6}-1
b) 0.08/12
c) 0.04
d) (1.08)1/121(1.08)^{1/12}-1


Q11. In Exercise 3.1 Q.8, accumulated value of an annuity due uses:

a) (1.035)1/21(1.035)^{1/2}-1
b) 0.035
c) 0.07/4
d) (1.07)1/41(1.07)^{1/4}-1


Q12. In Exercise 3.2 Q.1, with rate 8% for first 12 years and 6% thereafter, valuation requires:

a) Splitting the annuity at year 12
b) Using only 8%
c) Using average of 8% and 6%
d) Using 6% throughout


Q13. In Exercise 3.2 Q.2(a), the expression obtained is:

a) 7.4987 − 7.0236 = 0.4751
b) 0.07
c) 1.05
d) 0.5


Q14. In Exercise 3.2 Q.4, PV of immediate perpetuity of Rs. 100 p.a. uses:

a) 50/0.0450/0.04
b) 100/0.08100/0.08
c) 50/0.0850/0.08
d) 100/0.04100/0.04


Q15. In Exercise 3.2 Q.5, A receives Rs. 1800 p.a. ad infinitum, first at year 6:

a) 1800v5/0.091800v^5/0.09
b) 1800/0.091800/0.09
c) 1800v61800v^6
d) 1800×51800 \times 5


Q16. In Exercise 3.2 Q.6, Rs. 150 deposited at the start of each year requires:

a) Computing accumulated values separately
b) Using one average rate
c) Treating as level annuity
d) Ignoring some rates


Q17. In Exercise 3.2 Q.7, PV at effective 9% of annuity of Rs. 120 involves:

a) 120(i)/(i(4))120(i)/(i^{(4)})
b) 120an120a_{\overline{n}|}
c) 120×4120 \times 4
d) 120sn120s_{\overline{n}|}


Q18. In Exercise 3.2 Q.8, P.F. deductions of Rs. 200 per month for 10 years use:

a) (1.10)1/121(1.10)^{1/12}-1
b) 0.10/12
c) 0.10
d) (1.10)121(1.10)^{12}-1


Q19. In Exercise 3.2 Q.10, Rs. 50 at end of each half-year for 5 years requires:

a) Half-yearly units initially, then quarterly conversion
b) Yearly units throughout
c) Monthly units
d) Weekly units


Q20. In Exercise 3.2 Q.11, an immediate perpetuity of Rs. 180 p.a. uses:

a) (1+i(2)/2)2(1+i^{(2)}/2)^2
b) i(2)=0.08i^{(2)} = 0.08
c) i(2)/2=0.08i^{(2)}/2 = 0.08
d) i(2)=0.04i^{(2)} = 0.04

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