The difference between simple and compound rate of interest on a certain sum of money for 2 years at 20% rate of interest is ₹200. The amount is:

₹5000

The formula used here is,

Difference in the simple interest and compound interest on a certain sum at R% per annum in 2 years = (CI - SI) = $\frac{PR^2}{100^2}$

⇒ Difference in the simple interest and compound interest on a certain sum at 20% per annum in 2 years = Rs. 200

⇒ 200 = $\frac{P20^2}{100^2}$

⇒  200  = P x \(\frac{1}{25}\)

⇒   P   = 5000

So, Amount is Rs.5000