I bought two books; for Rs.490. I sold one at a loss of 15% and other at a gain of 19% and then I found each book was sold at the same price. Find the cost of the book sold at a loss?	Choose the correct choice from the following answers:
A) 337.83
B) 285.83
C) 284.83
D) 266.83
E) 299.83

Rationale: "x * ( 85 / 100 ) = ( 490 - x ) 119 / 100 x = 285.83 answer : b"
Answer: B