Question 1
If interest is compounded quarterly, the "Effective Annual Rate" (EAR) will be:
When compounding occurs more frequently than once a year (e.g., quarterly), interest is earned on interest more often, making the Effective Annual Rate (EAR) higher than the stated Nominal Rate.
Question 2
According to the "Rule of 72", if the interest rate is 8% p.a., an investment will double in approximately:
Rule of 72 formula: Years to Double ˜ 72 / Interest Rate. Here, 72 / 8 = 9 years.
Question 3
A "Perpetuity" is an annuity that:
Perpetuity is a stream of constant cash flows that continues indefinitely. PV of Perpetuity = Annual Cash Flow / Discount Rate.
Question 4
An "Annuity Due" differs from an "Ordinary Annuity" in that payments are made:
In an Ordinary Annuity, cash flows occur at the end of the period (e.g., bond interest). In Annuity Due, cash flows occur at the beginning (e.g., rent, insurance premium).
Question 5
A Sinking Fund factor is used to calculate:
If you need ?10 Lakhs after 5 years to repay a bond, the Sinking Fund factor helps you calculate how much you need to save annually to reach that target.
Question 6
For a given nominal interest rate and time period, the Future Value will be highest if compounding is done:
More frequent compounding results in interest being earned on interest sooner, leading to a higher final amount. Daily > Quarterly > Annual.
Question 7
As the discount rate (interest rate) increases, the Present Value of a future sum will:
There is an inverse relationship. A higher discount rate means money loses value faster over time, so the current worth of a future sum is lower.
Question 8
Calculate the Effective Annual Rate (EAR) if the nominal rate is 12% compounded monthly.
Formula: EAR = (1 + r/n)^n - 1. Here r=0.12, n=12. EAR = (1 + 0.01)^12 - 1 = 1.1268 - 1 = 0.1268 or 12.68%.
Question 9
Which formula represents the Present Value (PV) of a single future sum?
To find the present value, we divide the future value by the compounding factor (1+r)^n.
Question 10
Using the "Rule of 69", if the interest rate is 10%, the doubling period is approximately:
Rule of 69 Formula: Doubling Period = 0.35 + (69 / Interest Rate). Here, 0.35 + (69/10) = 0.35 + 6.9 = 7.25 years. This is more accurate for continuous compounding.
Question 11
Which factor would you use to calculate the monthly EMI for a Housing Loan?
A loan is a lump sum received today (PV), which is repaid in installments (Annuity). To equate the loan amount to the stream of EMIs, we use PVIFA.
Question 12
In a loan amortization schedule with constant EMI, as time passes:
In the early years, the outstanding principal is high, so interest is high. As principal is repaid, interest drops, allowing a larger portion of the fixed EMI to go towards principal repayment.
Question 13
To calculate the accumulated value of a systematic investment plan (SIP) at the end of the tenure, you would use the formula for:
SIP involves a series of equal payments at regular intervals. We want to know the total value at the end (Future), so FV of Annuity is used.
Question 14
The exact Fisher Equation relating Nominal Rate (r), Real Rate (R), and Inflation (i) is:
While r = R + i is a common approximation, the precise relationship accounts for the cross-product of real rate and inflation: r = R + i + (R*i). Thus, (1+r) is the product of (1+R) and (1+i).
Question 15
A "Deferred Annuity" is one where:
Example: A pension plan where you invest now, but the annuity payments (pension) start only after you retire (say, after 10 years).
Question 16
The Present Value of a perpetuity that grows at a constant rate 'g' is calculated as:
Formula: PV = CF1 / (k - g). This is used when cash flows grow forever at a constant rate (e.g., valuation of a stock with constant dividend growth).