I'll give you a question, please answer with step-by-step reasoning process.
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?\nOptions:\n(A) A) 400\n(B) B) 450\n(C) C) 500\n(D) D) 550\n(E) E) 600

(E)
10 * 150 = 1650\n3 * 100 + 5 * 150 = 1050\n1650 – 1050 = 600.

Thus, the answer is (E)