Gujarat Board Textbook Solutions Class 9 Maths Chapter 1 Number Systems Ex 1.1

Gujarat Board Textbook Solutions Class 9 Maths Chapter 1 Number Systems Ex 1.1

GSEB Solutions Class 9 Maths Chapter 1 Number Systems Ex 1.1

Question 1.
Is zero a rational number? Can you write it in the form of p/q, where p and q are integers and q≠0?
Solution:
Yes, zero is a rational number, because 0 can be written in the form of p/q, where p and q are integers and q≠0.
We can write

Question 2.
Find six rational numbers between 3 and 4.
Solution:
Infinitely many rational numbers can exist between 3 and 4.
Rational number between 3 and 4

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, because the collection (set) of whole numbers contains all the natural numbers

(ii) False, – 1 is an integer but it is not a whole number.

(iii) False, 2/3 is a rational number but it is not a whole number.

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