A watch was sold at a loss of 9%. If it was sold for Rs.220 more, there would have been a gain of 4%. What is the cost price?	Choose the correct choice from the following answers:  A) 1000  B) 2876  C) 1977  D) 2778  E) 1692
91%   104%   --------   13% ---- 220   100% ---- ? =&gt; Rs.1692   Answer: 1692
<result>E</result>
A watch was sold at a loss of 9%. If it was sold for Rs.220 more, there would have been a gain of 4%. What is the cost price?