I bought two books; for Rs.480. 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?	Select:
A) 167  B) 280  C) 187  D) 178  E) 170
x*(85/100)   = (480 - x)119/100   x =280   Answer:280
<result>B</result>
I bought two books; for Rs.480. 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?