Task: Question Answering
Input (English): Problem: a man spends 35 % of his income on food , 25 % on children education and 80 % of the remaining on house rent . what percent of his income he is left with ? 
Options: a ) 1 % , b ) 8 % , c ) 12 % , d ) 5 % , e ) 4 %
Output (English): b