A watch was sold at a loss of 10%. If it was sold for Rs.140 more, there would have been a gain of 4%. What is the cost price?  Select:  A) rs . 1000  B) rs . 1100  C) rs . 1200  D) rs . 1250  E) rs . 1500

Rationale: "explanation : 90 % 104 % - - - - - - - - 14 % - - - - 140 100 % - - - - ? = > rs . 1000 a )"
Answer: A