Question

Nirmal bought 52 books for Rs 1130 from one shop and 47 books for Rs 900 from another. What is the average price (in Rs) he paid per book ?

• A. 20.81
• B. 30.81
• C. 20.50
• D. 35.81

Answer 1

Answer:

C. 20.50

The average price he paid per book is ₹20.50.

1. Calculate the total number of books bought:

• Books from the first shop = 52

• Books from the second shop = 47

• Total Books = $52 + 47 = \mathbf{99\text{ books}}$

2. Calculate the total amount spent:

• Price paid at the first shop = ₹1130

• Price paid at the second shop = ₹900

• Total Money Spent = $1130 + 900 = \mathbf{2030}$

3. Find the average price per book:

• $\text{Average Price} = \frac{\text{Total Money Spent}}{\text{Total Books}}$

• $\text{Average Price} = \frac{2030}{99} = \mathbf{20.5050...}$

Rounding off to two decimal places, the final average price per book is ₹20.50.