Task: Question Answering
Input (English): Question: 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?

 Option A: 197

 Option B: 280

 Option C: 189

 Option D: 278

 Option E: 268
Output (English): Option B