In a medical store, the marked price of an injection is Rs. 6,490. The medical store owner gives a discount of 18% on its sale. What is the sale price (in Rs. ) of the injection? (Rounded off to the nearest rupee.)

Correct option is C

Given:
Marked price of the injection = ₹6,490
Discount = 18%
Formula Used:
​$$\text{Sale Price} = \text{Marked Price} \times \left(1 - \frac{\text{Discount}}{100}\right)$$​​
Solution:
Sale Price = ₹6,490 × (1 - $$\frac{18}{ 100}$$​) = ₹6,490 × (1 - 0.18) = ₹6,490 × 0.82  = ₹5,322