Find the compound interest at the rate of 10% per annum for two years on that principal which in two years at the rate of 10% per annum given Rs 200 as simple interest.

Explanation

To solve the problem, we need to find the compound interest for a principal amount that yields Rs 200 as simple interest over 2 years at a rate of 10% per annum.

### Step 1: Calculate the Principal Amount
The formula for Simple Interest (SI) is given by:
\[ \text{SI} = \frac{P \times R \times T}{100} \]
where:
- \( P \) = Principal amount
- \( R \) = Rate of interest (10% per annum)
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