Find compound interest on Rs.51200 at `15%` per annum for 9 months compounded quarterly

Explanation

To find the compound interest on Rs. 51200 at an interest rate of 15% per annum for 9 months compounded quarterly, we can follow these steps:

### Step 1: Identify the given values
- Principal (P) = Rs. 51200
- Rate of interest (R) = 15% per annum
- Time (T) = 9 months = 9/12 years = 0.75 years
- Compounding frequency (n) = 4 times a year (quarterly)

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