The difference between compound and simple interest on a sum of money for 2 years at 2% per annum is Rs. 122. The sum is:
Difference of compound interest and simple interest for 2 years = P(R/100)2= P (2/100)2 ⇒ 122 = P (1/2500) ⇒ P = 122 × 2500 = Rs. 3,05,000