Explanation:

- The shopkeeper marks an article at a price of Rs 736.

- A 25% discount is given on this marked price.

- Sale price after discount = 736 - (25% of 736) = 736 - 184 = Rs 552.

- The cost price of the article is Rs 460.

- Gain = Sale price - Cost price = 552 - 460 = Rs 92.

- Gain percentage \((x)\) is calculated by the formula: \( \text{Gain%} = \left(\frac{\text{Gain}}{\text{Cost Price}}\right) \times 100 = \left(\frac{92}{460}\right) \times 100 = 20\% \).

- Option 1: 20%

- Option 2: 18%

- Option 3: 24%

- Option 4: 16%