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. 5780, how much amount did raghu invest ?
Options: a. 1287, b. 2887, c. 2000, d. 1129, e. 1192
Output (English): c