# NCERT Solutions for Class 8 Maths Chapter 8

NCERT Solutions for Class 8 Maths Chapter 8 COMPARING QUANTITIES Exercise 8.1, Exercise 8.2 and Exercise 8.3 in English Medium as well as Hindi Medium updated for new academic session 2021-22 based on new NCERT Books.

Download Prashnavali 8.1, Prashnavali 8.2 and Prashnavali 8.3 in Hindi Medium to study online or download in PDF file format free. All the NCERT Solutions 2021-22 are best helping hand to all CBSE Board students and all other board’s students who are using NCERT Books for their academic session 2021-2022. NCERT Solutions of 8 Maths have been updated as per the requirement and suggestions received from the students.## NCERT Solutions for Class 8 Maths Chapter 8

### Class 8 Maths Chapter 8 all Exercises Solution

Class: 8 | Mathematics |

Chapter 8: | Comparing Quantities |

### Class 8 Maths Chapter 8 Solutions

Class 8 Maths Chapter 8 Comparing Quantities all exercises in English Medium as well as Hindi Medium are given here to view online or download in PDF form. Download Class 8 Maths App for offline use applicable for new session 2021-22. It works without internet, once downloaded.

### 8 Maths Chapter 8 Solutions in English Medium

### 8 Maths Chapter 8 Solutions in Hindi Medium

#### Class 8 Maths Exercise 8.1 Solutions in Videos

## Class 8 Maths Exercise 8.2 Solutions in Video

#### Class 8 Maths Exercise 8.3 Solutions in Video

### Important Terms about Class 8 Maths Chapter 8

##### A man got 10% increase in his salary. If his new salary is ₹1,54,000, find his original salary.

Let original salary be ₹ 100.

Therefore New salary i.e., 10% increase = 100 + 10 = ₹ 110

New salary is ₹ 110, when original salary = ₹ 100

New salary is ₹ 1, when original salary = 100/110

New salary is ₹ 1,54,000, when original salary

= [100/110] x 154000

= ₹ 1,40,000

Hence original salary is ₹ 1,40,000.

##### On Sunday 845 people went to the Zoo. On Monday only 169 people went. What is the percent decrease in the people visiting the Zoo on Monday?

On Sunday, people went to the Zoo = 845

On Monday, people went to the Zoo = 169

Number of decrease in the people = 845 – 169 = 676

Decrease percent = [676/845] x 100 = 80%

Hence decrease in the people visiting the Zoo is 80%.

In Chapter 8 Comparing Quantities, we will learn how to find the ratio of two quantities, how to change ratio into percentage, percentage into fraction, fraction into percentage. There are so many applications based on finding increase or decrease percentage, calculation of cost price, selling price, profit and loss, sales tax and VAT (value added taxes), etc. At the end to this chapter, we will learn to find compound interest as well as the comparison between simple interest and compound interest. During the calculations of compound interest, we should must see whether the rate is given annually or half yearly or quarterly. Similarly the interest is compounded annually or half yearly or quarterly.

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