Explanation:

- To find the difference between compound interest (CI) and simple interest (SI), use the formula:

\(\text{Difference} = \text{CI} - \text{SI}\).

- Given:

\(\text{Difference} = \text{Rs. } 200\),

\(\text{Principal (P)} = \text{Rs. } 7200\),

\(\text{Time (T)} = 2 \text{ years}\),

and \(\text{Rate (R)} = x\%\).

- Formula for SI:

\(\text{SI} = \frac{P \cdot R \cdot T}{100}\).

- Formula for CI for 2 years:

\(\text{CI} = P \cdot \left(1 + \frac{R}{100}\right)^2 - P\).

- Using the above, solve for \(x\) such that \(\text{CI} - \text{SI} = 200\).

- Calculate and check options for \(x\):

- \(x = 15\%\)

- \(x = 15\frac{1}{3}\%\)

- \(x = 16\frac{2}{3}\%\)

- \(x = 18\%\)

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