A bookseller gives 7 books free on buying 13 books. Find the percentage of discount given to the customer's.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 35%.
Total number of books received = 13 + 7 = 20
The discount is the 7 free books.
Discount percentage = (7/20) × 100 = 35%
Therefore, the percentage of discount given to the customer is 35%.