Lalit bought a book for Rs 63 after getting 30% discount on the printed price. What was the printed price?

Options

A. Rs 90
B. Rs 110
C. Rs 81.90
D. Cannot be determined

Answer

To find the printed price of the book that Lalit bought for Rs 63 after a 30% discount, we can follow these steps:

### Step 1: Define the Variables
Let the printed price of the book be denoted as \( x \).

### Step 2: Understand the Discount
Lalit received a 30% discount on the printed price. This means he paid 70% of the printed price (100% - 30% = 70%).

### Step 3: Set Up the Equation
Since Lalit paid Rs 63 after the discount, we can express this mathematically as:
\[ \text{Selling Price} = \text{Printed Price} - \text{Discount} \]
This can be rewritten using our variable:
\[ 63 = x - 0.30x \]
This simplifies to:
\[ 63 = 0.70x \]

### Step 4: Solve for \( x \)
To find \( x \), we rearrange the equation:
\[ x = \frac{63}{0.70} \]
Calculating this gives:
\[ x = \frac{63 \times 100}{70} \]
\[ x = \frac{6300}{70} = 90 \]

### Step 5: Conclusion
Thus, the printed price of the book is Rs 90.