# Class 9 Math Chapter 1 Number System MCQ Questions with Answer

Number System Class 9 MCQ is one of the best strategies to prepare for the CBSE Class 9 Board exam. If you want to complete a grasp concept or work on one’s score, there is no method except constant practice. Students can improve their speed and accuracy by doing more Number System class 9 MCQ which will help them all through their board test.

## Number System Class 9 MCQ Questions with Answer

Class 9 Math MCQ with answers are given here to Chapter 1 Number System . These MCQs are based on the latest CBSE board syllabus and relate to the latest Class 9 Math syllabus. By Solving these Class 9 MCQs, you will be able to analyze all of the concepts quickly in the Chapter and get ready for the Class 9 Annual exam.

Learn Number System Class 9 MCQ with answers pdf free download according to the latest CBSE and NCERT syllabus. Students should prepare for the examination by solving CBSE Class 9 Number System MCQ with answers given below.

Question 1. π is an irrational number because its decimal expansion is
(a) terminating
(b) non-terminating
(c) non-terminating repeating
(d) non-terminating non-repeating

D

Question 2. Every point on a number line represents
(a) a unique real number
(b) a natural number
(c) a rational number
(d) an irrational number

A

Question 3. Every rational number is
(a) a natural number
(b) an integer
(c) a real number
(d) a whole numb er

C

Question 4. Decimal representation of a rational number cannot be
(a) terminating
(b) non-terminating
(c) non-terminating repeating
(d) non-terminating non-repeating

D

Question 5. A rational number equivalent to 3/17 is
(a) 6/17
(b) 6/34
(c) 17/3
(d) 3/34

B

Question 6. A rational number between 2 and 3 is
(a) 2.010010001…
(b) √6
(c) 5/2
(d) 42−√2

C

Question 7. Which of the following is a rational number?
(a) −2/3
(b) −1/√5
(c) 13/√5
(d) √2/3

A

Question 8. Which of the following is irrational?
(a) 0.15

(d) 0.5015001 500015…

D

Question 9. The value of 0.3̅ . in the form pq, where p and q are integers and q ≠ 0 is
(a) 33/100
(b) 3/10
(c) 1/3
(d) 3/100

C

Question 10.

(a) 8/25
(b) 29/90
(c) 32/99
(d) 32/199

B

Question 11. Four rational numbers between 3 and 4 are
(a) 3.1, 3.2, 3.8, 3.9
(b) 3/5,4/5,1,6/5
(c) 3.1, 3.2, 4.1, 4.2
(d) 13/5,14/5,16/5,17/5

A

Question 12. The smallest irrational number to be added to 3 + √2 to get a rational number is
(a) –√2
(b) 3 – √2
(c) √2 – 3
(d) √3+2

A

Question 13. 2√5+ 5 is equal to
(a) 2√10
(b) 10
(c) 3√5
(d) 3√10

C

Question 14.

(a) 437/9999
(b) 394/999
(c) 434/99
(d) 437/999

D

Question 15. Simplest rationalisation factor of 3√40 is
(a) 3√25
(b) 3√5
(c) √40
(d) √5

A

Question 16 .The product of (16)√18 and (1/3)√18 is
(a) 1
(b) 112
(c) 13
(d) √2

A

Question 17. √5×√7×√15×√21 in simplified form is
(a) √105
(b) √210
(c) 105
(d) 210

C

Question 18. The perimeter of the given figure is
(a) 60√5
(b) 12√5
(c) 27√5
(d) 32√5

B

Question 19. On simplification of , we get

(a) √5+ √2 +5√11
(b) √5/2+ 2√2 +√11
(c) √5+ √2 +6√11
(d) √5+ 2√2 +5√11

A

Question 20. The product of 3√7 and √5 is
(a) 3√35
(b) 6√35
(c) 6√6125
(d) 6√1225

C

Whoever needs to take the CBSE Class 9 Board Exam should look at this MCQ. To the Students who will show up in CBSE Class 9 Math Board Exams, It is suggested to practice more and more questions. Aside from the sample paper you more likely had solved. These Number System Class 9 MCQ are ready by the subject specialists themselves.

Question 21. 3√250 ÷3√10  in simplified form is equal to
(a) 3√25
(b) 5
(c) √5
(d) 3√2500

A

Question 22.  is equal to

(a) 10/3√5
(b) 30√5
(c) 10/√5
(d) 12√5

C

Question 23. (3+√3)(3−√3) on simplification becomes equal to
(a) 18
(b) 2√3
(c) 6
(d) 9

C

Question 24. The value of (3+√5)2 (3-√5)2 is
(a) 15
(b) 16
(c) 4
(d) 14

B

Question 25. On Simplifying , we get

(a) 1
(b) 2
(c) 2/3
(d) 3/2

D

Question 26. The value of is

(a) 19
(b) 9
(c) – 3
(d) 13

Question 27.  is equal to

(a) 1/√3
(b) 2/√3
(c) 2√3
(d) 6√3

A

Question 28. The value of  is

(a) 2
(b) 0
(c) 9/5
(d) 1/5

A

Question 29.  equals

(a) 5/3
(b) – 5/3
(c) 3/5
(d) −3/5

B

Question 30. The value of   [8-4/3 ÷ 2-2]1/2  is
(a) 1/2
(b) 2
(c) 1/4
(d) 4

A

Question 31. (256/625)-3/4 in its simplified form is equal to
(a) 25/64
(b) 64/125
(c) 125/64
(d) 64/25

C

Question 32. (32)1/5  ×(125)-1/3 in its simplified form is equal to
(a) 1625
(b) 45
(c) 25
(d) 225

C

Question 33. If x = 9-√5−, then x+1/x is equal to
(a) 85
(b) – 8√5
(c) 18
(d) 81

C

Question 34. Which of the following is equal to a?

(a)

(b)

(c)

(d)

C

Question 35. If x is a positive real number, then is

(a) x1/24
(b) x1/6
(c) x1/12
(d) x1/20

B

Question 35. If x = 2 and y = 3, then the value of xy + yx is
(a) 15
(b) 17
(c) 19
(d) 21

B

Question 36. If √3 = 1.732, then the value of 1/√3 approximately is
(a) 0.866
(b) 0.433
(c) 0.288
(d) 0.577

D

Question 37. If √2 = 1.414, then the value of √3÷ √6 up to three places of decimal is
(a) 0.235
(b) 0.707
(c) 1.414
(d) 0.471

B

Question 38. Decimal representation of −17/8 is
(a) – 2.125
(b) – 2.225
(c) 2.125
(d) – 1.175

A

Question 39.

(a) 0.704125
(b) 0.714285
(c) 0.77132
(d) 0.714381

B

You can easily get good marks If you study with the help of Class 9 Number System MCQ. We trust that information provided is useful for you. NCERT MCQ Questions for Class 9 Number System PDF Free Download would without a doubt create positive results.

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