Task: Question Answering
Input (English): Problem: vishal invested 10 % more than trishul . trishul invested 10 % less than raghu . if the total sum of their investments is rs . 6936 , how much amount did raghu invest ? 
Options: a ) 1287 , b ) 2887 , c ) 2000 , d ) 1129 , e ) 2400
Output (English): e