Task: Question Answering
Input (English): Problem: shopkeeper rise price by 31 % and gives successive discount of 10 % and 15 % . what is overall % gain or loss ? 
Options: a ) 0.215 % , b ) 1.215 % , c ) 3.215 % , d ) 6.215 % , e ) 7.215 %
Output (English): a