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RD Sharma Class 9 Solutions Chapter 1 - Number System (Ex 1.3) Exercise 1.3

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Last updated date: 23rd May 2024
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RD Sharma Class 9 Solutions Chapter 1 - Number System (Ex 1.3) Exercise 1.3 - Free PDF

Free PDF download of RD Sharma Class 9 Solutions Chapter 1 - Number System Exercise 1.3 solved by Expert Mathematics Teachers on Vedantu.com. All Chapter 1 - Number System Ex 1.3 Questions with Solutions for RD Sharma Class 9 Maths to help you to revise the complete Syllabus and Score More marks. Register for online coaching for IIT JEE (Mains & Advanced) and other engineering entrance exams.

The first chapter in Algebra is Number systems in the R.D Sharma Class IX textbook. In this chapter, students learn that the Number system defines a set of values used to represent quantity. Every quantity can be represented in binary, octal, decimal, duodecimal, and hexadecimal forms. Students also learn that the decimal number system is the most popular and common number system which we use in our daily life. This chapter also teaches that there are numbers in the decimal system (i.e., 0 to 9). In the case of the binary number system, there are two different numbers and 2 is the base for the binary number system. Students are also taught that the base of the number system is also known as radix. The notation for this base is ( r ). The base helps us determine how many numbers are there in the number system. In the binary number system, the numbers are known as Bits. 

On the other hand, in the case of the Octal number system, there are 8 distinct digits (i.e., from 0 to 7). Hence, the base is 8. Students also learn that the duodecimal number system consists of 12 distinct numbers (i.e., from 0 to 9 ), but the rest of the numbers are represented by alphabets (i.e., 10=A, 11=B, 12=C, 13=D, 14=E, 15=F). Since we have only 12 distinct numbers from 0 to 11, it will be represented as (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B). For the hexadecimal number system, the same process is repeated. The numbers represented for the hexadecimal number system are 16 distinct numbers (i.e., 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F). 

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Competitive Exams after 12th Science

Exercise 1.3 consists of the following number of questions

Q.1: Solve -  6 questions each.

Q.2: Solve - 6 questions each.


Advantages of referring to RD Sharma Books:

RD Sharma helps to construct strong foundations. These books explain the topics thoroughly and in a systematic manner. RD Sharma textbooks contain questions, solutions, and concepts in a fashion that helps students before exams. These books reassure the students and make exam preparation better for them with their concise yet detailed approach. At specific intervals, apart from academic exams, other competitive exams are conducted as well. Competitive exams like NTSE, Olympiads, and various other exams are organized to search for talent on a national basis. But study material is not necessarily prescribed by all the competitive exams. This is where RD Sharma textbooks can come in handy. RD Sharma textbooks help students cultivate a habit of practicing regularly.  

FAQs on RD Sharma Class 9 Solutions Chapter 1 - Number System (Ex 1.3) Exercise 1.3

1. Where can students find RD Sharma Class 9 Solutions Chapter 1 - Number System (Ex 1.3) Exercise 1.3 - Free PDF?

Vedantu app or website has made numerous sources available that can help students study and understand concepts in a systematic manner. These resources are reliable and accurate as they are made by professional authors and the content is very effective in helping the students to score good marks. Important questions and their solutions, revision notes, reference notes everything is made available on the Vedantu app or website. Also, all the resources are free of cost hence there is no need for students to worry about having access to numerous study materials.

2. Is RD Sharma Class 9 Solutions Chapter 1 - Number System (Ex 1.3) Exercise 1.3 - Free PDF good to study from?

‘RD Sharma for Maths.’ This statement can never be unfamiliar to the students of Class IX and X, especially in CBSE-affiliated schools. Almost all the students swear by its usefulness even long before the academic session starts. For several reasons, students take assistance from reference books created by the renowned owner. R.D Sharma books have an exam-oriented approach. They provide answers to all the questions in a simple and effective manner. It has been observed that the students who refer to R.D Sharma books in order to understand concepts in mathematics, hardly forget the basic principles even if they wished to. R.D Sharma books aimed at helping students to practice regularly. The presentation of each topic is done in a unique way, which helps students to remember the topics and retain the information even more effectively and easily.

3. What topics are covered in RD Sharma Class 9 Solutions Chapter 1 - Number System (Ex 1.3) Exercise 1.3 - Free PDF?

R.D Sharma covers all the core topics of Maths that are required to study for class IX. It comprises 6 units. The 1st unit contains the chapter number system. In this chapter, a brief review is given about the representation of natural numbers, rational numbers, and integers on the number line. Through successive magnification, representation of terminating/ non-terminating recurring decimals is also done. The 2nd unit comprises Algebra which covers topics like polynomials, linear equations in two variables. The 3rd unit consists of coordinate geometry. In this unit concepts like a Cartesian plane, coordinates of a point, names and terms associated with the coordinate plane, plotting points in the plane, and notations are covered. Similarly, the 4th, 5th and 6th units cover the concepts of geometry, mensuration, statistics and probability respectively.

4. Why is it necessary to solve all the chapter exercises?

The main purpose of solving the chapters’ exercises is that it gives ample amount of practice to the students. Mathematics is not a type of subject that can be memorized. It requires lots of practice, hard work, and getting the concepts cleared systematically. R.D Sharma’s book contains all the questions with their solutions properly represented after every chapter. Going through the solved examples after each chapter can help the students clear the concepts effectively and thoroughly. It is also advised for the students to go after the exercises and solve them. It has been observed that exams have a tendency of asking the same questions that are prescribed from the exercises. Hence, it is always better to solve sums in the exercises as well.

5. What are tips to score well in Maths in Class IX?

In Class 9, practicing Maths is the only way to score well. Students are advised to solve all the sums in the exercises that are given after each chapter. This helps in improving the problem-solving ability of the students and also enhances their speed and efficiency. Making important notes of definitions, formulas, and equations in a rough notebook and revising them regularly also proved to be useful. It is also recommended for the students to solve sample papers and question papers within the given time limit. This will not only help the students to become familiar with the exam pattern but also increase time management.