Below you will find MCQ Questions of Chapter 1 Number Systems Class 9 Maths Free PDF Download that will help you in gaining good marks in the examinations and also cracking competitive exams. These Class 9 MCQ Questions with answers will widen your skills and understand concepts in a better manner.
MCQ Questions for Class 9 Maths Chapter 1 Number Systems with answers
1. The value obtained on simplifying (√5 + √6)^{2}
(a) 12 + 5√30
(b) 13 + 2√33
(c) 11 - 2√30
(d) 11 + 2√30
► (d) 11 + 2√30
2. Find the remainder when 67^{99} is divided bt 7
(a) 1
(b) 6
(c) 4
(d) 2
► (a) 1
3. All the integers are
(a) whole numbers
(b) rational numbers
(c) irrational numbers
(d) natural numbers
► (b) rational numbers
4. The rational number between 1 and 2 is
(a) 3/2
(b) 7/2
(c) 5/2
(d) 1/2
► (a) 3/2
5. (256)3/4 = ____
(a) 128
(b) 32
(c) 26
(d) 64
► (d) 64
6. Between 3 and 4 there are
(a) 10,000 rational numbers
(b) 1000 rational numbers
(c) Infinitely many rational numbers
(d) 500 rational numbers
► (c) Infinitely many rational numbers
7. The value of 49^{1/2} is equal to———
(a) 1/49
(b) 49
(c) 7
(d) 1/7
► (c) 7
8. Which of the following is an irrational number ?
(a) 4/55
(b) 2.31312345….
(c) 1.404040…..
(d) 1.11
► (b) 2.31312345….
9. Which of the following statement is true
(a) x^{0} = 1/x
(b) x^{0} = x
(c) x^{0} = 0
(d) x^{0} = 1
► (d) x^{0} = 1
10. Which of the following statement about real numbers is false ?
(a) Closed with respect to operation of algebra
(b) Associative law of multiplication
(c) Distributive law of multiplication with respect to addition
(d) Closed with respect to commutative law of addition
► (a) Closed with respect to operation of algebra
11. A rational number between √3 and √5 is
(a) 1/2(√3 -√ 5)
(b) 1/2(√3 + √5)
(c) 2.1
(d) 3.1
► (c) 2.1
12. Which of the following statements is false?
(a) Rational numbers have a terminating or non terminating repeating decimal form.
(b) Irrational numbers can be written in the form p/q where q is non zero and both p, q are integers
(c) Rational numbers can be written in the form p/q where q is non zero and both p,q are integers
(d) Every number on the number line is either rational or irrational, there’s no third alternative
► (b) Irrational numbers can be written in the form p/q where q is non zero and both p, q are integers
13. 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
► (c) 132
14. (2√3 +√3) is equal to
(a) 2√6
(b) 6
(c) 3√3
(d) 4√6
► (c) 3√3
15. The ratio of the circumference of a circle to the diameter of the circle is.
(a) An integer
(b) A rational number
(c) An irrational number
(d) A whole number
► (c) An irrational number
16. Insert one rational number between 2 and 3.
(a) (2+3)/2
(b) (2-3)/2
(c) (2 x 3)/2.
(d) 2 x 2 + 3 x 3
► (a) (2+3)/2
17. p/q is a rational number, so p and q must be
(a) Any two integers
(b) One of them positive and the other negative
(c) Both natural numbers
(d) Both integers but q must be non zero
► (d) Both integers but q must be non zero
18. Which of the following is not a rational number:
(a) √2
(b) √4
(c) √9
(d) √16
► (a) √2
19. If a = 1/ (3-2√2) & b = 1/ ( 3+2√2) then the value of a2 +b2 is :-
(a) 34
(b) 35
(c) 36
(d) 37
► (a) 34
20. The least number that is divisible by all the numbers from 1 to 10 (both inclusive) is
(a) 10
(b) 100
(c) 504
(d) 2520
► (d) 2520
21. What should be added to -5/4 to get -1?
(a) -1/4
(b) 1/4
(c) 1
(d) -3/4
► (b) 1/4
22. The product of two numbers is -20/9. If one of the numbers is 4, find the other.
(a) –5/9
(b) 3/11
(c) 12/39
(d) –9/11
► (a) –5/9
Hope the given MCQ Questions will help you in cracking exams with good marks. These Number Systems MCQ Questions will help you in practising more and more questions in less time.