MCQs Questions for Class 9 Maths Chapter 1 Number System

# MCQs Questions for Class 9 Maths Chapter 1 Number System

MCQs Questions for Class 9 Maths Chapter 1 Number System

In this 21st century, Multiple Choice Questions (MCQs) play an important role to prepare for a competitive examination. Now-a-days, MCQs questions are asked in CBSE board examinations as well. In most of the competitive examinations, only MCQ Questions are asked.

In future, if you want to prepare for competitive examination, then you should focus on the MCQs questions. Thus, let’s solve these MCQs questions to make our foundation strong.

In this post, you will find 18 MCQs questions for class 9 maths chapter 1 number system.

MCQs Questions for Class 9 Maths Chapter 1 Number System

1. In between two rational numbers, there is/are:

(a) Exactly one rational number

(b) Infinitely many rational number

(c) Many irrational numbers

(d) Only irrational numbers

2. Can we write 0 in the form of p/q?
(a) Yes
(b) No
(c) Cannot be explained
(d) None of the above

3. When 1515 is divided by 3√3, what is the quotient?
(a) 5√3
(b) 3√5
(c) 5√5
(d) 3√3

4. The product of a rational and an irrational number is:

(a) Always an integer

(b) Always a rational number

(c) Always an irrational number

(d) Sometimes rational and sometimes irrational

5. The three rational numbers between 3 and 4 are:
(a) 5/2, 6/2, 7/2
(b) 13/4, 14/4, 15/4
(c) 12/7, 13/7, 14/7
(d) 11/4, 12/4, 13/4

6. The decimal expansion of √2 is
(Ð°) finite decimal
(b) 1.4121
(c) non-terminating recurring
(d) non-terminating non-recurring

7. The decimal expansion of an irrational number may be:

(a) Terminating

(b) Recurring

(c) Either terminating or non- terminating

(d) Non-terminating and non-recurring

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

9. A rational number between √2 and √3:

(a) 1.9

(b) (√2. √3)/2

(c) 1.5

(d) 1.8

10. (√a + √b) (√a – √b) is
(a) a + b
(b) a – b
(c) 2√a
(d) 2√b

11. 4√5 + 5√5 is equal to:

(a) 9√5

(b) 9√10

(c) 5√10

(d) 7√5

12. Which of the following is an irrational number?
(a) √16
(b) √(12/3)
(c) √12
(d) √100

13.√12 × √15 is equal to:

(a) 5√6

(b) 6√5

(c) 10√5

(d) √25

14. √6 × √27 is equal to:
(a) 9√2
(b) 3√3
(c) 2√2
(d) 9√3

15. What would be the denominator after rationalizing 7/(5√3 - 5√2)?

(a) 19

(b) 20

(c) 25

(d) None of these

16. Which of the following is equal to x3?
(a) x6-x3
(b) x6.x3
(c) x6/x3
(d) (x6)3

17. If x1/12 = 491/24, then find the value of x.
(a) 49
(b) 2
(c) 12
(d) 7

18. The decimal expansion of an irrational number may be:
(a) Terminating
(b) Recurring
(c) Either terminating or non-terminating
(d) Non-terminating and non-recurring