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The printed price of a book is Rs. 480. A retailer pays Rs. 367.20 for it. He gets successive discounts of 10% and one other rate. His second rate is:

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The printed price of a book is Rs. 480. A retailer pays Rs. 367.20 for it. He gets successive discounts of 10% and one other rate. His second rate is:
1). 15%
2). 16%
3). 14%
4). 13%


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Answered by on | Votes 0 |

Given, printed price of a book is Rs. 480.

First discount % = 10%

Selling price after 1st discount = 480 – 10% of 480

⇒ Selling price after 1st discount = Rs. 432

Let the 2nd discount% be d.

Selling price after 2nd discount = 432 – d% of 432

Given, final selling price = Rs. 367.20

⇒ 432 – d% of 432 = 367.2

⇒ 64.8 = d% of 432

⇒ d = 15

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