## Introduction to Class 9 Solutions Chapter 1- Number System (Ex 1.2) Exercise 1.2 - Free PDF

## FAQs on RD Sharma Class 9 Solutions Chapter 1 - Number System (Ex 1.2) Exercise 1.2 - Free PDF

**1. What is the difference between Natural and Whole numbers according to RD Sharma Class 9 Chapter 1 solutions?**

According to the solutions of Class 9 RD Sharma Natural numbers are positive integers (1, 2, 3…) etc. These numbers are primarily used for counting and ordering in our day to day lives. The only difference between natural and whole numbers is that whole numbers also contain 0 along with all the natural numbers. So whole numbers are as follows 0, 1, 2, 3 etc.

**2. About class 9 RD Sharma Chapter 1, What are rational numbers?**

Regarding class 9 RD Sharma, Rational numbers are those numbers that can be represented in the form of expression ‘p/q’ where p and q are integers and q is not equal to 0. For example, 15 and -32 are rational numbers because there is more than one way to write the same number as the ratio of integers i.e 15/1 and -32/1. On the other hand, irrational numbers are those numbers that cannot be written in the form of p/q.

**3. Where can I find useful study resources for class 9 maths?**

The Vedantu website and app is a good place to start your academic session that will help students in preparing the chapter. The content available on this platform is created by professionals in the field and is very accurate and reliable. Students can find study material, revision notes, important questions, question papers, and a whole lot more! The study material on the website is completely free and there is no cost involved. All students have to do is sign in and then you will be able to download the pdf as per your requirement. You can take advantage of these free resources that will surely help you become more efficient in the preparation for your exams.

**4. Why is studying from the RD Sharma book essential for class 9?**

RD Sharma is a very interactive and well-designed book. It follows the latest CBSE syllabus. Hence, the book is very helpful in preparing for class 9 exams. It explains concepts in a clear, uncomplicated and concise manner. It is the best book if your fundamentals are clear and you want to take it to the next level. It has numerous solved examples and exercises that add to a student’s learning. It covers everything that can be asked in the Class 9 examination. Hence, students are advised to study from this book.

**5. Is it necessary to solve all the chapter exercises given in RD Sharma?**

As we all know practice makes a man perfect, so It is always better to solve all the chapter exercises as it leads to more and more practice. Maths is not a subject that we can just read or memorize and write solutions to in exams for that we need solid foundations and understanding of the topic. It requires hard work and practice. RD Sharma has examples and exercises after every section. After going through each section, go through the solved examples and understand them completely. Then move on to the exercises and try to solve them. There are chances of the same questions coming in the examination so students are advised to practice the sums in the exercises well to ace the exams.