Explanation:

- Surbhi sold the article for Rs 176 after a 12% discount.

- This means the selling price is 88% of the marked price (100% - 12% = 88%).

- Let the marked price be \( x \). So, \( 0.88x = 176 \).

- Solving for the marked price: $$ x = \frac{176}{0.88} = 200 $$.

- Without any discount, Surbhi would have sold it at the full marked price, Rs 200.

- She would have earned a 25% profit on the cost price at the full marked price.

- Let the cost price be \( y \), then \( y \times 1.25 = 200 \).

- Solving for the cost price: $$ y = \frac{200}{1.25} = 160 $$.

- The correct cost price of the article is Rs 160.

Correct Answer: Option 3: 160

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