1. The problem states that after a 10% discount, the article is sold for 360. 2. Let the original price be $x$. 3. A 10% discount means the selling price is 90% of the original price, so we write the equation: $$0.9x = 360$$ 4. To find the original price $x$, divide both sides by 0.9: $$x = \frac{360}{0.9}$$ 5. Calculate the division: $$x = 400$$ 6. Therefore, the price before the discount was 400. 7. The correct answer is option c. 400.