Explanation:

- Marked Price: This is the original price before any discount is applied.

- Discount Given: 12% off on the marked price reduces the price to Rs 924.

- Selling Price: Rs 924 is what the customer pays after discount.

To find the discount:

- Let's assume the marked price is Rs 100.

- With a 12% discount, the price reduces by Rs 12, resulting in Rs 88.

- To find the marked price corresponding to Rs 924 selling price:

$$

\frac{88}{100} \times \text{Marked Price} = 924

$$

Solving gives: \(\text{Marked Price} = \frac{924 \times 100}{88} \approx 1050 \)

- Actual discount = Marked Price - Selling Price = Rs 1050 - Rs 924 = Rs 126.

- Correct Option: Option 1 - Rs126