# MCQ Questions for Class 9 Maths Chapter 1 Number Systems with Answers

If you’re looking for a way to enhance your Class 9 Maths, then look no further than the NCERT MCQ Questions for Class 9 Maths Chapter 1 Number Systems with Answers. MCQ Questions for Class 9 Maths with Answers is perfect for those who are in Class 9 Maths and want to get ahead of everyone else by mastering the subject skills as soon as possible! Go ahead and find Class 9 Maths Chapter 1 Number Systems Objective Questions.

## Number Systems Class 9 MCQs Questions with Answers

Solving MCQ on Number Systems Multiple Choice Questions of Class 9 Maths with Answers can be of great help to students as they will be aware of all the concepts. These Class 9 Maths Chapter 1 MCQ with Answers pave for a quick revision, thereby helping you learn more about this subject.

Question 1.
Which of the following is a rational number?
(a) π
(b) 0
(c) 1+√3
(d) 2√3

Question 2.
Which of the following is the product of $$\frac { 7 }{ 8 }$$ and $$\frac { -4 }{ 21 }$$?
(a) $$\frac { -1 }{ 6 }$$
(b) $$\frac { 1 }{ 12 }$$
(c) $$\frac { -16 }{ 63 }$$
(d) $$\frac { -147 }{ 16 }$$

Answer: (a) $$\frac { -1 }{ 6 }$$

Question 3.
In between two rational number there is/are:
(a) Exactly one rational number
(b) Infinitely many rational number
(c) Many irrational numbers
(d) Only irrational numbers

Answer: (b) Infinitely many rational number

Question 4.
The product of a rational and an irrational numbers is:
(a) Always an integer
(b) Always a rational number
(c) Always an irrational number
(d) Sometimes rational and sometimes irrational

Answer: (c) Always an irrational number

Question 5.
If the HCF of 65 and 117 is expressible in the form 65m – 117, then the value of m is
(a) 4
(b) 2
(c) 1
(d) 3

Question 6.
The HCF and LCM of two numbers are 33 and 264 respectively. When the first number is completely divided by 2 the quotient is 33. The other number is:
(a) 66
(b) 130
(c) 132
(d) 196

Question 7.
The decimal fraction in which there are finite number of digits in its decimal part is called
(a) terminating decimal fraction
(b) non-terminating decimal fraction
(c) linear fraction

Question 8.
The product of a rational and an irrational numbers is:
(a) Always an integer
(b) Always a rational number
(c) Always an irrational number
(d) Sometimes rational and sometimes irrational

Answer: (c) Always an irrational number

Question 9.
Can we write 0 in the form of $$\frac { p }{ q }$$?
(a) Yes
(b) No
(c) Cannot be explained
(d) None of the above

Question 10.
3√6 + 4√6 is equal to:
(a) 6√6
(b) 7√6
(c) 4√12
(d) 7√12

Question 11.
If x = 2+√3, then x + $$\frac { 1 }{ x }$$ =
(a) 5
(b) 4
(c) -4
(d) -5

Question 12.
The three rational numbers between 3 and 4 are:
(a) $$\frac { 5 }{ 2 }$$, $$\frac { 6 }{ 2 }$$, $$\frac { 7 }{ 2 }$$
(b) $$\frac { 13 }{ 4 }$$, $$\frac { 14 }{ 4 }$$, $$\frac { 15 }{ 4 }$$
(c) $$\frac { 12 }{ 7 }$$, $$\frac { 13 }{ 7 }$$, $$\frac { 14 }{ 7 }$$
(d) $$\frac { 11 }{ 4 }$$, $$\frac { 12 }{ 4 }$$, $$\frac { 13 }{ 4 }$$

Answer: (b) $$\frac { 13 }{ 4 }$$, $$\frac { 14 }{ 4 }$$, $$\frac { 15 }{ 4 }$$

Question 13.
Decimal representation of a rational number cannot be
(a) terminating
(b) always terminating
(c) always non-terminating
(d) non terminating non repeating

Answer: (d) non terminating non repeating

Question 14.
All the integers are
(a) whole numbers
(b) rational numbers
(c) irrational numbers
(d) natural numbers

Question 15.
Every real number is
(a) neither rational nor irrational
(b) irrational
(c) rational
(d) either rational or irrational

Answer: (d) either rational or irrational

Question 16.
How many zeros after the decimal point will be there in the decimal form of the number 10-n ?
(a) n
(b) n+1
(c) n-1
(d) $$\frac { n }{ 2 }$$

Question 17.
A forester wants to plant 44 apples tree, 66 banana trees and 110 mango trees in equal rows (in terms of number of trees). Also, he wants to make distinct rows of tree (i.e. only one type of tree in one row). The number of rows (minimum) that required is:
(a) 2
(b) 3
(c) 10
(d) 11

Question 18.
The rational number between 1 and 2 is
(a) $$\frac { 3 }{ 2 }$$
(b) $$\frac { 7 }{ 2 }$$
(c) $$\frac { 5 }{ 2 }$$
(d) $$\frac { 1 }{ 2 }$$

Answer: (a) $$\frac { 3 }{ 2 }$$

Question 19.
Which of the following lies between 0 and -1?
(a) 0
(b) -3
(c) $$\frac { -2 }{ 3 }$$
(d) $$\frac { 4 }{ 3 }$$

Answer: (c) $$\frac { -2 }{ 3 }$$

Question 20.
Expression of 2.2323… in the form of $$\frac { a }{ b }$$ is ________.
(a) $$\frac { 221 }{ 99 }$$
(b) $$\frac { 75 }{ 31 }$$
(c) $$\frac { 7 }{ 99 }$$
(d) $$\frac { 223 }{ 99 }$$

Answer: (a) $$\frac { 221 }{ 99 }$$

Question 21.
√6 × √27 is equal to:
(a) 9√2
(b) 3√3
(c) 2√2
(d) 9√3

Question 22.
In between any two numbers there are:
(a) Only one rational number
(b) Many rational numbers
(c) Infinite rational numbers
(d) No rational number

Question 23.
Every rational number is:
(a) Whole number
(b) Natural number
(c) Integer
(d) Real number

Question 24.
(64)$$\frac { -3 }{ 2 }$$
(a) $$\frac { -1 }{ 512 }$$
(b) $$\frac { 1 }{ 512 }$$
(c) 64
(d) $$\frac { 1 }{ 64 }$$

Answer: (a) $$\frac { -1 }{ 512 }$$