# RS Aggarwal Class 8 Maths Chapter 1 Solutions

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The RS Aggarwal books have been trending for a while now and have proven to be effective to everyone who has made use of them. These books have been around for 25 to 30 years in the market but due to the rise of participation of students in competition exams, their existence has gained importance in recent times.

## So what is RS Aggarwal’s book?

RS Aggarwal Class 8 Maths Chapter 1 Solutions is quantitative aptitude books for various competitive exams. These exams include the names of all examinations that range from secondary school to the highest level of competitive or recruitment exams. They can be used for standards 7th, 8th, 9th, 10th, 11th, 12th and above. These books have been named after and written by an author named R.S. Aggarwal’.

## Mathematics for Class 8:

A sincere effort and constant struggle of the author has made it possible for him to introduce new concepts in a simple language so that children are able to grasp them easily. Usage of attractive illustrations, basic concepts have been explained in a concise manner so that students find them interesting and easy to understand. The revised edition is based on the latest syllabus outlined by the National Council of Education Research and Training (NCERT) for the students of Class 8. The book has been categorised/classified under 27 chapters, where the content is written in lucid language. Both easy and difficult problems are given to encourage the students to practice more and more so that they become confident in solving the exercises. Chapters included in the textbook:

rational numbers

Square Roots Cubes and Cube Roots,

playing with Numbers

algebraic Expressions and Identities factorisation

division of algebraic Expressions

linear equation in one variable

Time and Work Percentage, direct variations, inverse variations

Profit and Loss, value and discount added tax, Compound Interest understanding shapes-i (Polygons)

understanding shapes-iii (special types of Quadrilaterals)

practical Geometry (construction)

Visualising the shapes Mensuration-I (area of a polygon and a trapezium)

Mensuration-II (volumes and the face areas of a cuboid and Cube)

mensuration-iii (Surface Area and Volume of a circular cylinder)

data handling-i (classification and tabulation of data)

data handling-ii (a graphical representation of data as histograms)

data handling-iii ( representation of data as pie charts or circle graphs in form of pictures)

data handling-iv (probability) introduction to graphs salient features of the textbook mathematical concepts have been explained most easily. Each chapter has a good number of explanative specimens to comprehend the applications of basic concepts. In all the chapters, illustrative , followed by an exercise containing a multitude of unsolved problems, have been provided.

This book has been penned down by R.S Aggarwal and its publishers are the Bharti Bhawan Publishers & distributors and this edition largely and intimately follows the syllabus and guidelines that have been set by the CBSE. It makes an effort to cover every aspect of Mathematics that will help the students immensely in their final examination. Crucial features of this book: It contains graphical and schematic representations of different mathematical concepts so that the students have a clear understanding of the same. The compilation of different types of exercises makes it easy-going for the students to develop their mathematical skills. Numerous theorems have been presented in slang-free manner for easy readability and close understanding. New generalities and concepts have been introduced in such a way that the students never find a dull moment to sharpen his or her mathematical skills with the help of this book.

One can choose from a wide variety of books that the RS Agarwal provides the topics on which the books are based can be named as:

• quantitative aptitude,
• verbal and non-verbal reasoning,
• mathematics books,
• logical reasoning books,
• objective arithmetic for SSC and railway exam,
• Mathematics for the CDS entrance examination,
• mental mathematics,
• Mca entrance examination,
• quick learning objective general English and objective mathematics etc.
• Chapter 1st of the class 8 mathematics RS Aggarwal book for CBSE is rational numbers.

### Now, what are rational numbers?

A rational number is any number that can be written in the form of a fraction along with integers. Rational number, in number-crunching, is a number that can be addressed as the remainder p/q of two whole numbers with the end goal that q ≠ 0. … In decimal structure, rational numbers are either ending or rehashing decimals. Rational numbers can be both positive and negative as well as zero.

Most of the numbers that we keep using in our everyday life are Rational Numbers. The legendary ancient Greek mathematician Pythagoras believed that all numbers were rational, but one of his scholar students Hippasus proved (using geometry, it is considered) that nobody can write the square root of 2 as a fraction, and so it was indirect or in other words irrational. This book teaches how positive and negative rational numbers work, how to represent rational numbers on a number line and how to write them in a standard form.

For example:

15 and -89 are rational numbers.

This book describes Rational Numbers step by step in the following manner:

1- Introduction

2- Need for Rational Numbers

3- What are rational Numbers

4- Numerator and Denominator

5- Are Integers are also Rational Numbers

6- Equivalent Rational Numbers

7- Positive and Negative Rational Numbers

8- Rational Numbers on a number line

9- Rational numbers in Standard Form

10- Comparison of Rational Numbers

11- Precautions while comparing Rational Numbers

12- Rational Numbers between Rational Numbers

13- Operations on Rational Numbers

(ii) Subtraction

(iv) Multiplication

(v) Division

This book is a comprehensive guide and practice book for the students of standard 8th. It explains the first chapter- the rational numbers in-depth the content covered in this book are as follows:

1. Introduction to rational numbers and comparing quantities
2. Solution to the problems given in the chapter.
3. MCQ and worksheet on both topics.

In this book, the author has provided study matter for the learning basicalities of the two topics – rational numbers and comparing quantities. He has also included examples to follow, problems to try, worksheets for practice and multiple-choice questions to test the knowledge of the reader on the topic covered.