10 * 170 = 1700
3 * 100 + 5 * 150 = 1050
1700 – 1050 = 650
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.170. Find the unknown rate of two towels?
Options:
- A) 400
- B) 650
- C) 500
- D) 550
- E) 600