NCERT Solutions for Class 8 Maths Chapter 7 Exercise 7.2 Comparing Quantities - PDF Download
JEE Mains & Advanced
NCERT solutions for class 8 maths chapter 7 Comparing Quantities ex 7.2 are a comprehensive solution for students. Ex 7.2 of Comparing Quantities covers how to solve the finding discounts, estimating in percentages, sales tax, value-added tax, and goods and services tax. Ex 7.2 class 8 maths chapter 7 consists of five questions. Academic team of maths at eSaral have provided step by step solutions for each question of ex 7.2.
Our maths experts have developed these NCERT solutions to ensure that you are adequately prepared for your examinations. You can get a good grasp of each concept by solving questions from these solutions and make sure you can answer any questions you have based on the ex 7.2. Download the NCERT solutions from eSaral website available in free PDF format and begin practicing to achieve a high score. NCERT Solutions Chapter 8 Maths for Class 8 will assist the students in solving the questions more precisely.
Topics Covered in Exercise 7.2 Class 8 Mathematics Questions
Ex 7.2 class 8 math solutions for chapter 7 Comparing Quantities is based on the topic finding discounts, estimation in percentage, sales tax/value added tax/goods and services tax which are available here in proper explanation.
|
1. |
Finding Discounts |
|
|
2. |
Sales Tax/Value Added Tax/Goods and Services Tax |
|
-
Finding Discounts - Discounting is a term used to describe a sale where products are offered at a reduced price. In other words, discount is the reduction in the market price in order to increase the sales and promote the products.
The discount amount can be calculated by subtracting the Sale price from the market price.
Discount = Market price – Sale Price
To calculate the discount percentage
|
Discount % = discount/market price x 100 |
-
Estimation in percentages
An example can be used to understand the estimation.
Example - If the price of a product in a shop is 498.80 and it is available at a discount of 15 % then how would you estimate the amount to be paid?
Solution - In order to determine the percentage, the following steps must be followed:
-
For example, let’s round the value of 498.8 to the nearest multiple of 10, which is 500.
-
Calculate the 10% of 500.
500 x 10 / 100=50
-
Find the half of it, 1/2 × 50 = 25.
-
Let’s add both the values 50 + 25 to get 75.
2. Sales Tax/Value Added Tax/Goods and Services Tax
Sales Tax is the amount collected by the government from the consumer on the sale of a product.
The sales tax is collected by the shopkeeper and paid to the government by the customer. Therefore, the sales tax is always on the selling price of the product and added to the total bill value.
In the past, you had to pay Sales tax on your bill. Nowadays, you mostly pay Value Added Tax (VAT).
Formula
If the tax rate is x%, then the Total price after tax would be
|
Final price = cost of the item + x / cost of item × 100 |
Tips for Solving Exercise 7.2 Class 8 Chapter 7 Comparing Quantities
Before moving on to the questions of NCERT solutions class 8 maths chapter 7 exercise 7.2 Comparison of Quantities, we recommend you to read the tips given by our experts.
-
It is highly recommended to students to comprehend the concepts of finding discount, estimation in percentage and sales tax/value added tax before solving the ex 7.2.
-
Ex 7.2 includes questions which require formulas of discount and value tax so you must remember these formulas to easily solve the questions.
-
You must practice examples given before ex 7.2 to be well familiar with the questions of ex 7.2.
Importance of Solving Ex 7.2 Class 8 Maths Chapter 7 Comparing Quantities
eSaral offers a range of advantages for solving ex 7.2 questions in class 8 maths chapter 7 ex 7.2, including:
-
Maths chapter 7 class 8 covers all topics and concepts related to discount, estimation in percentage and sales tax/value tax which provides complete solutions to all the questions of exercise 7.2.
-
Each problem is presented with comprehensive, sequential explanations, allowing students to comprehend and apply mathematical principles associated with ex 7.2.
-
NCERT solutions are in PDF version which provides you all the answers to all the questions.
-
Ex 7.2 class 8 maths solutions are explained in easy to understand language.
Frequently Asked Questions
Question 1. What is a discount? Write the formula for discount %.
Answer 1. Discounting is a term used to describe a sale where products are offered at a reduced price. The discount amount can be calculated by subtracting the Sale price from the market price.
Formula for discount % = discount / market price × 100
Question 2. What do you mean by sales tax?
Answer 2. Sales Tax is the amount collected by the government from the consumer on the sale of a product. The sales tax is collected by the shopkeeper and paid to the government by the customer. Therefore, the sales tax is always on the selling price of the product and added to the total bill value.