Task: Question Answering
Input (English): Problem: a women purchased 3 towels @ rs. 100 each, 5 towels @ rs. 150 each and two towels at a certain rate which is now slipped off from his memory. but she remembers that the average price of the towels was rs. 165. find the unknown rate of two towels ?
Options: a. a. 400, b. b. 450, c. c. 500, d. d. 550, e. e. 600
Output (English): e