What sum will become Rs 9826 in 18 months if the rate of interest is 5/2 %  per annum and the interest is compounded half-yearly?

Explanation

To solve the problem of finding the principal amount that will grow to Rs 9826 in 18 months at a rate of 5/2% per annum compounded half-yearly, we can follow these steps:

### Step 1: Identify the given values
- Final amount (A) = Rs 9826
- Rate of interest (R) = 5/2% per annum
- Time (T) = 18 months

### Step 2: Convert the time into years and calculate the number of compounding periods
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