A watch was sold at a loss of 10%. If it was sold for Rs.280 more, there would have been a gain of 4%. What is the cost price?  Select
A) s : 2000 B) s : 1067 C) s : 1278 D) s : 1028 E) s : 1027

Rationale: "90 % 104 % - - - - - - - - 14 % - - - - 280 100 % - - - - ? = > rs : 2000 answer : a"
Answer: A