A shopkeeper allows 20% off on the marked price of goods and still gets a profit of 25%. What is the actual cost to him of an article marked Rs 500?

Explanation

To solve the problem step by step, we will find the actual cost price of the article marked at Rs. 500, given that the shopkeeper allows a 20% discount and still makes a profit of 25%.

### Step 1: Calculate the Selling Price after Discount
The marked price of the article is Rs. 500. The shopkeeper gives a discount of 20%.

\[ \text{Discount} = 20\% \text{ of } 500 = \frac{20}{100} \times 500 = 100 \]
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