Question

The difference between the compound interest and the simple interest earned at the end of 2nd year on a sum of money at a rate of 5% per annum is Rs. 15. What is the sum?

Answer 1

CI for 1 YEAR = SI for 1 YEAR
CI for 2 YEAR IS NOT SAME AS SI FOR FIRST YEAR
SI REMAINS SAME WHILE CI CHANGES EVERY YEAR