A man sold an article for Rs 490 and gained 10% on it. Find the cost price of the article.

Explanation

To find the cost price of the article sold by the man, we can follow these steps:

### Step 1: Understand the relationship between Selling Price (SP), Cost Price (CP), and Gain Percentage.
The formula for gain percentage is given by:
\[ \text{Gain Percentage} = \left( \frac{\text{Selling Price} - \text{Cost Price}}{\text{Cost Price}} \right) \times 100 \]

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