Task: Question Answering
Input (English): Problem: the difference between simple and compound interests on a certain sum for 2 years at 4 % per annum is rs . 50 . the sum is 
Options: a ) rs . 20,400 , b ) rs . 25,000 , c ) rs . 31,250 , d ) rs . 38,000 , e ) rs . 48,000
Output (English): c