Task: Question Answering
Input (English): Problem: a sum was put at simple interest at a certain rate for 10 years. had it been put at 5 % higher rate, it would have fetched rs. 600 more. what was the sum ?
Options: a. rs. 1200, b. rs. 1300, c. rs. 1400, d. rs. 1500, e. none of these
Output (English): a