NCERT Solutions for Class 9 Maths Chapter 1 Number Systems PDF

1. NCERT Solutions for Class 9 Maths Chapter 1 Number SystemsPDF NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Question Answer PDF Ex 1.1 are part of NCERT Solutions for Class 9 Maths. Here we have given NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.1. http://mywayteaching.com/ncert- solution-class-9/math-chapter-1-number-system.php NCERT Solutions for Class 9 Maths includes solutions to all the questions given in the NCERT textbook for Class 9. The students can download PDF of chapter-wise solutions to these problems, from the links provided further below in this page. These Solutions of NCERT Class 9 Maths cover all the topics included in the textbook-like Number System, Coordinate Geometry, Polynomials, Euclid’s Geometry, Quadrilaterals, Triangles, Circles, Constructions, Surface Areas and Volumes, Statistics, Probability, etc. For more information visit: http://mywayteaching.com/ncert-solutions-class9.php With the help of these Solutions available for NCERT books for Class 9 Maths, students can practise all types of questions from the chapters. The CBSE Class 9 Maths Solutions have been designed by our experts in a well-structured format to provide several possible methods of answering the problems and ensure a proper understanding of concepts. The students are suggested to practise all these solutions thoroughly for their exams. It will also help them in building a foundation for higher-level classes. For detail visit: http://mywayteaching.com/ Ex 1.1 Class 9 Maths Question 4. State whether the following statements are true or false. Give reasons for your answers. (i) Every natural number is a whole number. (ii) Every integer is a whole number. (iii) Every rational number is a whole number. Solution: (i) True ∵ The collection of all natural numbers and 0 is called whole numbers. (ii) False ∵ Negative integers are not whole numbers. (iii) False ∵Rational numbers are of the form p/q, q ≠ 0 and q does not divide p completely that are not whole numbers. NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.2 Ex 1.2 Class 9 Maths Question 1. State whether the following statements are true or false. Justify your answers. (i) Every irrational number is a real number. (ii) Every point on the number line is of the form √m , where m is a natural number. (iii) Every real number is an irrational number. Solution: (i) True Because all rational numbers and all irrational numbers form the group (collection) of real numbers.

2. (ii) False Because negative numbers cannot be the square root of any natural number. (iii) False Because rational numbers are also a part of real numbers. Ex 1.2 Class 9 Maths Question 2. Are the square roots of all positive integers irrational? If not, give an example of the square root of a number that is a rational number. Solution: No, if we take a positive integer, say 9, its square root is 3, which is a rational number.