Marked price of a chair is Rs 800 and discount is 15%. What is additional discount (in percentage) should be offered to the customer to bring the price of chair to Rs 578?

Options

A. 15
B. 10
C. 16.5
D. 17.5

Explanation

To solve the problem step by step, let's break it down clearly:

### Step 1: Calculate the Discount Amount
The marked price of the chair is Rs 800, and the discount offered is 15%.

To find the discount amount:
\[
\text{Discount Amount} = \text{Marked Price} \times \left(\frac{\text{Discount Percentage}}{100}\right)
...