Romesh borrowed a sum of Rs. 245760 at 12.5% per annum compounded annually. On the same day, he lent out his money to Ramu at the same rate of interest but compounded semi-annually. Find his gain after 2 years.
A sum of money amounts to Rs. 11910.16 in 1.5 years at 12% per annum interest being compounded semi annually. Find the sum.