Task: Question Answering
Input (English): Problem: the difference between simple interest and compound interest on rs . 1200 for one year at 10 % per annum reckoned half - yearly is : 
Options: a ) rs . 2.50 , b ) rs . 3 , c ) rs . 3.75 , d ) rs . 4 , e ) rs . 5
Output (English): b