Task: Question Answering
Input (English): Problem: a man saves 20 % of his monthly salary . if an account of dearness of things he is to increase his monthly expenses by 20 % , he is only able to save rs . 250 per month . what is his monthly salary ? 
Options: a ) 5000 , b ) 2999 , c ) 2878 , d ) 6250 , e ) 2771
Output (English): d