# Discount Rate

List price of a book is Rs.100. A dealer sells three such books for Rs.274.50 after allowing discount at a certain rate. Find the rate of discount.

- 8.5%
- 8.34%
- 8.33%
- 8.16%

**Answer: (1) 8.5 %**

**Explanation:-
**List price pf a book = Rs. 100

Therefore, the list price 3 books = 3 x 100

= Rs. 300

The selling price of 3 books = Rs. 274.5

Discount = 300 – 274.5 = Rs. 25.5

Then, the percentage of discount = 25.5 x 100/300

= 8.5%

Then, the rate of discount is 8.5%.

Hence, the answer is (1) 8.5%