Subject: mathqa
Question: a man purchased 3 blankets @ rs . 100 each , 4 blankets @ rs . 150 each and two blankets at a certain rate which is now slipped off from his memory . but he remembers that the average price of the blankets was rs . 150 . find the unknown rate of two blankets ?
Option: 
A: b ) 350
B: c ) 450
C: a ) 600
D: d ) 470
Answer: C