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 2020-21 based on new NCERT Books.

Download प्रश्नावली 8.1, प्रश्नावली 8.2 and प्रश्नावली 8.3 in Hindi Medium to study online or download in PDF file format free. All the NCERT Solutions 2020-21 are best helping hand to all CBSE Board students and all other board’s students who are using NCERT Books for their academic session 2020-2021. 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
Subject:Maths – गणित
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 or download कक्षा 8 गणित App for offline use applicable for new session 2020-21. It works without internet, once downloaded.

Class 8 Maths Exercise 8.1 & 8.2 Solutions in Video

Class 8 Maths Exercise 8.1 Solutions in Video
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%.

एक वस्तु का मूल्य ₹ 15,950 था। ₹ 450 इसकी मरम्मत पर खर्च किए गए थे। यदि उसे 15% लाभ पर बेचा जाता है तो उसका विक्रय मूल्य ज्ञात कीजिए।

यहाँ, वस्तु का मूल्य = ₹ 15,500 और मरम्मत पर खर्च = ₹450
इसलिए, क्रय मूल्य = 15500 + 450 = ₹15,950
लाभ = 15%
अतः, जब क्रय मूल्य = ₹100, तब विक्रय मूल्य = 100 + 15 = ₹115
जब क्रय मूल्य = ₹1, तब विक्रय मूल्य = 115/100
जब क्रय मूल्य = ₹15950, तब विक्रय मूल्य
= [115/100] x 15950
= ₹18,342.50

एक टेलीविज़न का मूल्य ₹ 13,000 है। इस पर 12% की दर से बिक्री कर वलूला जाता है। यदि विनोद इस टेलीविज़न को खरीदता है तो उसके द्वारा भुगतान की जाने वाली राशि ज्ञात कीजिए।

क्रय मूल्य = ₹13,000 और बिक्री कर की दर = 12%
माना, क्रय मूल्य = ₹100, तब विक्रय मूल्य = 100 + 12 = ₹112
जब क्रय मूल्य = ₹ 100, तब विक्रय मूल्य = ₹112
जब क्रय मूल्य = ₹1, तब विक्रय मूल्य = 112/100
जब क्रय मूल्य = ₹13,000, तब विक्रय मूल्य
= [112/100] x 13000
= ₹14,560
अतः, उसके द्वारा भुगतान की जाने वाली राशि ₹14,560 है।

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.

Do you know?

संख्याओं के बीच अनुपात निकलना और फिर उसे प्रतिशत में बदलना आदि का चलन बीजगणित में आम बात है। यह पाठ इसी तथ्य पर आधारित है। साधारण ब्याज और चक्रवृद्धि ब्याज निकलना और उनकी तुलना करना आदि अध्याय में दिया गया है।

NCERT Solutions for Class 8 Maths Chapter 8 COMPARING QUANTITIES Exercise 8.1 in pdf form
NCERT Solutions for Class 8 Maths Chapter 8 COMPARING QUANTITIES ex. 8.1 in englsh
NCERT Solutions for Class 8 Maths Chapter 8 COMPARING QUANTITIES exercise 8.2 in pdf form
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.2
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.2 free in pdf form
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.2 download in english
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.3
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.3 in pdf form
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.3 in english medium
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.3 free download
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.3 updated form mp and cbse board
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.3 all question answers
NCERT Solutions for Class 8 Maths Chapter 8 Exercise 8.3 guide free
8 Maths Exercise 8.1 Solutions in hindi medium free
8 Maths Exercise 8.1 Solutions in pdf free guide
8 Maths Exercise 8.2 Solutions
8 Maths Exercise 8.2 Solutions in pdf free
8 Maths Exercise 8.2 Solutions in hindi medium guide
8 Maths Exercise 8.2 Solutions for 2018-19
8 Maths Exercise 8.3 Solutions
8 Maths Exercise 8.3 Solutions in pdf form
8 Maths Exercise 8.3 Solutions free download
8 Maths Exercise 8.3 Solutions guide
8 Maths Exercise 8.3 Solutions all question answers
8 Maths Exercise 8.3 Solutions for mp board
8 Maths Exercise 8.3 Solutions in hindi medium