A man purchased 2 blankets @ Rs.100 each, 5 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?
Select:
A) A)300  B) B)350  C) C)450  D) D)470  E) E)550
550xplanation:     10 * 150= 
<gadget id="calculator">  10 * 150</gadget>
<output>1_500</output>
1500   2 * 100 + 5 * 150= 
<gadget id="calculator">2 * 100 + 5 * 150</gadget>
<output>950</output>
950   1500 – 950= 550   550
<result>E</result>
A man purchased 2 blankets @ Rs.100 each, 5 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?