• # question_answer 23) If the difference between the compound and simple interest on a certain sum of money for 3 years at 5% per annum is Rs. 15-25, then the sum is? A) Rs. 1, 000                     B) Rs. 2, 500C) Rs. 1, 500                     D) Rs. 2.000

Required sum $=\frac{15.25}{\left( \frac{5}{100}+3 \right)}\times {{\left( \frac{100}{5} \right)}^{2}}$  $=\frac{15.25\times 20\times 20\times 20}{61}$  $=Rs.\,\,2,000$