the effective rate of interest corresponding to a nominal rate 3% p.a ...
Effective Rate of Interest Calculation
Effective rate of interest is the actual interest rate earned or paid on an investment or loan, taking into account the effects of compounding over a given period. To calculate the effective rate of interest corresponding to a nominal rate of 3% p.a payable half-yearly, follow these steps:
Step 1: Convert the nominal rate to a periodic rate
Since the nominal rate is 3% p.a payable half-yearly, divide the annual rate by the number of compounding periods per year. In this case, since interest is paid half-yearly, the periodic rate would be 3% / 2 = 1.5% per half-year.
Step 2: Calculate the effective rate of interest
To calculate the effective rate of interest, use the formula:
Effective Rate = (1 + (Nominal Rate / Number of Compounding Periods)) ^ Number of Compounding Periods - 1
= (1 + (0.03 / 2)) ^ 2 - 1
= (1 + 0.015) ^ 2 - 1
= (1.015) ^ 2 - 1
= 1.030225 - 1
= 0.030225 or 3.0225%
Step 3: Interpretation
Therefore, the effective rate of interest corresponding to a nominal rate of 3% p.a payable half-yearly is approximately 3.0225%. This means that if you invest or borrow money at the nominal rate of 3% p.a with half-yearly compounding, you would effectively be earning or paying 3.0225% interest per year.
the effective rate of interest corresponding to a nominal rate 3% p.a ...
Compound interest