Task: Question Answering
Input (English): Problem: a shopkeeper sells 20 % of his stock at 10 % profit ans sells the remaining at a loss of 5 % . he incurred an overall loss of rs . 450 . find the total worth of the stock ? 
Options: a ) 20029 , b ) 22500 , c ) 20289 , d ) 20027 , e ) 20026
Output (English): b