Students can access the NCERT MCQ Questions for Class 9 Maths Chapter 1 Number Systems with Answers Pdf free download aids in your exam preparation and you can get a good hold of the chapter. Use MCQ Questions for Class 9 Maths with Answers during preparation and score maximum marks in the exam. Students can download the Number Systems Class 9 MCQs Questions with Answers from here and test their problem-solving skills. Clear all the fundamentals and prepare thoroughly for the exam taking help from Class 9 Maths Chapter 1 Number Systems Objective Questions.
Number Systems Class 9 MCQs Questions with Answers
Students are advised to solve the Number Systems Multiple Choice Questions of Class 9 Maths to know different concepts. Practicing the MCQ Questions on Number Systems Class 9 with answers will boost your confidence thereby helping you score well in the exam.
Explore numerous MCQ Questions of Number Systems Class 9 with answers provided with detailed solutions by looking below.
Question 1.
Which of the following is a rational number?
(a) π
(b) 0
(c) 1+√3
(d) 2√3
Answer
Answer: (b) 0
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
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
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
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
Answer
Answer: (b) 2
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
Answer
Answer: (c) 132
To write 9/20 as a decimal you have to divide numerator by the denominator of the fraction.
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
(d) quadratic fraction
Answer
Answer: (a) terminating decimal 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
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
Answer
Answer: (a) Yes
Question 10.
3√6 + 4√6 is equal to:
(a) 6√6
(b) 7√6
(c) 4√12
(d) 7√12
Answer
Answer: (b) 7√6
Question 11.
If x = 2+√3, then x + \(\frac { 1 }{ x }\) =
(a) 5
(b) 4
(c) -4
(d) -5
Answer
Answer: (b) 4
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
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
Answer: (d) non terminating non repeating
Question 14.
All the integers are
(a) whole numbers
(b) rational numbers
(c) irrational numbers
(d) natural numbers
Answer
Answer: (b) rational numbers
Question 15.
Every real number is
(a) neither rational nor irrational
(b) irrational
(c) rational
(d) either rational or irrational
Answer
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) \(\frac { n }{ 2 }\)
Answer
Answer: (c) n-1
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
Answer
Answer: (c) 10
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
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
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
Answer: (a) \(\frac { 221 }{ 99 }\)
Question 21.
√6 × √27 is equal to:
(a) 9√2
(b) 3√3
(c) 2√2
(d) 9√3
Answer
Answer: (a) 9√2
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
Answer
Answer: (c) Infinite rational numbers
Question 23.
Every rational number is:
(a) Whole number
(b) Natural number
(c) Integer
(d) Real number
Answer
Answer: (d) Real number
Question 24.
(64)\(\frac { -3 }{ 2 }\)
(a) \(\frac { -1 }{ 512 }\)
(b) \(\frac { 1 }{ 512 }\)
(c) 64
(d) \(\frac { 1 }{ 64 }\)
Answer
Answer: (a) \(\frac { -1 }{ 512 }\)
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