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 gain ?	Pick: A) A)657 B) B)200 C) C)438 D) D)290 E) E)427
x = price of a book sold at loss   x*(85/100)   = (480 - x)119/100   x = 280   Price of book sold at gain = 480 - 280= 
<gadget id="calculator">480 - 280</gadget>
<output>200</output>
200   Answer:200
<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 gain ?