Correct Answer - Option 3 : 15 %
Given:
The marked price of the book is 180
The selling price of the book is 153
Concept:
Discount = Marked price - Selling price
Calculation:
Let be assume p% discount given by the shopkeeper to Asmita
⇒ p% = (180 - 153)/180 × (100)
⇒ (27/180) × (100) = 15%
∴ The required result will be 15%.