The marked price of an article is 10% higher then the cost price. A discount of 10% is given on the market price. In this kind of sale, the seller bears ?

Let cost price of article = Rs. 100
$$\eqalign{ & {\text{Selling price of article - }} \cr & {\text{ = 100}} \times \frac{{110}}{{100}} \times \frac{{90}}{{100}} \cr & = {\text{Rs}}{\text{. 99}} \cr & {\text{Loss }}\% - \cr & = \frac{{100 - 99}}{{100}} \times 100 \cr & = 1\% \cr} $$