A person buys an item from a shop for which the shopkeeper offers a discount

A person buys an item from a shop for which the shopkeeper offers a discount of 10% on the marked price. The person pays using an e-wallet which gives 10% cash back. Which one of the following is the value of effective discount?

  1. 20%
  2. 18%
  3. 19%
  4. 21%
  • Answer: The correct option is C
  • Explanation:

    The effective discount is the cumulative effect of the two discounts.

    Consider the price of an item be ₹100.

    Price after 10% discount = ₹90.

    Price after 10% cash back = ₹81.

    Effective discount = ₹100 - ₹81 = ₹19