Task: Question Answering
Input (English): Problem: the difference between simple interest and compound interest on rs . 1400 for one year at 20 % per annum reckoned half - yearly is : 
Options: a ) $ 185.63 , b ) $ 852.36 , c ) $ 875.5 , d ) $ 989.9 , e ) $ 875.8
Output (English): d