Task: Question Answering
Input (English): Problem: a merchant has 1000 kg of sugar part of which he sells at 8 % profit and the rest at 18 % profit . he gains 14 % on the whole . the quantity sold at 18 % profit is 
Options: a ) 300 , b ) 400 , c ) 600 , d ) 500 , e ) none of these
Output (English): c