Printed rate of a book is Rs. 250 and available at Rs. 225 . What is the rate of discount.

Options

A. `10%`
B. `15%`
C. `20%`
D. `12%`

Answer

To find the rate of discount on the book, we can follow these steps:

### Step 1: Identify the Printed Price and Selling Price
- The printed price of the book is given as Rs. 250.
- The selling price (available price) of the book is Rs. 225.

### Step 2: Calculate the Discount Amount
- The discount amount can be calculated by subtracting the selling price from the printed price.

\[ \text{Discount} = \text{Printed Price} - \text{Selling Price} = 250 - 225 = 25 \]

### Step 3: Calculate the Rate of Discount
- The rate of discount is calculated using the formula:

\[ \text{Rate of Discount} = \left( \frac{\text{Discount}}{\text{Printed Price}} \right) \times 100 \]

- Substituting the values we have:

\[ \text{Rate of Discount} = \left( \frac{25}{250} \right) \times 100 \]

### Step 4: Simplify the Calculation
- Now, simplify the fraction:

\[ \frac{25}{250} = \frac{1}{10} \]

- Therefore,

\[ \text{Rate of Discount} = \frac{1}{10} \times 100 = 10\% \]

### Conclusion
- The rate of discount on the book is **10%**.

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