# MCQ Questions for Class 9 Number System with Answers

Students can refer to the following Number System Class 9 MCQ Questions with Answers provided below based on the latest curriculum and examination pattern issued by CBSE and NCERT. Our teachers have provided here collection of multiple choice questions for Number System Class 9 covering all topics in your textbook so that students can assess themselves on all important topics and thoroughly prepare for their exams

## Number System Class 9 MCQ Questions with Answers

We have provided below chapter wise Number System Class 9 MCQ Questions with answers which will help the students to go through the entire syllabus and and practice multiple choice questions provided here with solutions. As Number System MCQs in Class 9 pdf download can be really scoring for students, you should go thorough all problems provided below so that you are able to get more marks in your exams.

#### Number System Class 9 MCQ Questions

Question. Which of the following numbers have terminating decimal expansion?
(A) 8/225
(B) 5/18
(C)11/21
(D) 21/21150

Ans.

D

Question. A positive integer n when divided by 9, gives 7 as remainder. What will be the remainder when (3n – 1) is divided by 9?
(A) 1
(B) 2
(C) 3
(D) 4

Ans.

B

Question. The fraction

Ans.

D

Question. 1.224 can be expressed as a fraction in simplest form as __.
(A) 450/551
(B) 1224/1000
(C) 551/450
(D) 1000/1224

Ans.

C

Question. Given that H.C.F. (306, 954, 1314) = 18, find L.C.M. (306, 954, 1314).
(A) 1183234
(B) 1123238
(C) 1183914
(D) 1123328

Ans.

C

Question. If ‘a’ and ‘b’ are rational numbers and 2+√3 / 2-√3 = a+b√3 then (a + b)2 = ……………..
(A) 121
(B) 171
(C) 116
(D) 198

Ans.

A

Question. The descending order of the surds 3√2,6√3,9√4 is __.
(A) 9√4,6√3,3√2
(B) 9√4,3√2,6√3
(C) 3√2,6√3,9√4
(D) 6√3,9√4,3√2

Ans.

C

Question. The product of two consecutive natural numbers is always _.
(A) An even number
(B) An odd number
(C) A prime number
(D) Divisible by 3

Ans.

A

Question. The value of

(A) 0
(B) 1
(C) 2
(D) 4

Ans.

C

Question. The 100th root of 10(1010 ) is __.
(A) 10810
(B) 10108
(C) (√10)(√10)10
(C) 10(√10)√10

Ans.

A

Question. The value of

Ans.

C

Question. The rationalising factor of 7√x3y5z2 is __.
(A) 7√z5y2x4
(B) 4√x3y2z
(C) √x4y2z5
(D) 3√y2x4z3

Ans.

B

Question. Which of the following is an irrational number?
(A) π
(B) 22/7
(C) Both (A) and (B)
(D) Neither (A) nor (B)

Ans.

D

Question. A real number

(A) Terminating decimal expansion
(B) Non-terminating decimal expansion
(C) Repeating decimal expansion
(D) Both (B) and (C)

Ans.

A

Question. According to the Fundamental Theorem of Arithmetic, if p (a prime number) divides b2 and b is positive, then __.
(A) b divides p
(B) b2 divides p
(C) p divides b
(D) None of these

Ans.

A

Question. In a seminar the number of participants in Mathematics, Physics and Biology are 192, 240 and 168. Find the minimum number of rooms required if in each room same number of participants is to be seated and all of them being in the same subject.
(A) 20
(B) 25
(C) 28
(D) 30

Ans.

D

Question. Sam, Advik and Trishu go for a morning walk. They step off together and their steps measure 35 cm, 32 cm and 40 cm, respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps?
(A) 1109
(B) 1102
(C) 1100
(D) 1120

Ans.

C

Question. A boy was asked to multiply a given number by (8/17). Instead, he divided the given number by (8/17) and got the result 225 more than what he should have got if he had multiplied the number by (8/17). The given number was ________.
(A) 8
(B) 17
(C) 64

Ans.

B

Question. Four different electronic devices make a beep after every 30 minutes, 1 hour,1 X 1 / 2 hour and 1 hour 45 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at ________.
(A) 12 midnight
(B) 3 a.m.
(C) 6 a.m.
(D) 9 a.m.
(D) 136

Ans.

D

Question. A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 9s are wrong and the other digits are correct, then the correct answer would be ________.
(A) 553681
(B) 555181
(C) 555681
(D) 556581

Ans.

C

Question. A boy was asked to multiply a given number by (8/17). Instead, he divided the given number by (8/17) and got the result 225 more than what he should have got if he had multiplied the number by (8/17). The given number was ________.
(A) 8
(B) 17
(C) 64

Ans.

D

Question. Four different electronic devices make a beep after every 30 minutes, 1 hour,1 X 1 / 2 hour and 1 hour 45 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at ________.
(A) 12 midnight
(B) 3 a.m.
(C) 6 a.m.
(D) 9 a.m.
(D) 136

Ans.

D

Question. Which of the following statements is INCORRECT?
(A) For natural numbers a and b, if a divides b2 then a divides b.
(B) For any natural number n, √n −1 + √n +1 is irrational.
(C) Product of distinct prime numbers is always equal to their L.C.M.
(D) For any natural number n, 6n never ends with digit zero.

Ans.

A

Question. Fill in the blanks.
(i) Every point on the number line is a number which may either Q or R .
(ii) S numbers have either terminatingor non-terminating repeating decimal expansion.
P              Q            R           S
(A) Real         Integer    Natural     Irrational
(B) Rational    Integer    Real         Irrational
(C) Irrational  Rational   Integers   Natural
(D) Real         Rational   Irrational  Rational

Ans.

D

Question. Match the following.

(A) (P) → (iii); (Q) → (iv); (R) → (i); (S) → (ii)
(B) (P) → (iv); (Q) → (i); (R) → (ii); (S) → (iii)
(C) (P) → (iii); (Q) → (i); (R) → (iv); (S) → (ii)
(D) (P) → (i); (Q) → (iii); (R) → (iv); (S) → (ii)

Ans.

C

Question. A charitable trust donates 28 different books of Maths, 16 different books of Science and 12 different books of Social is given maximum number of books of only one subject of their interest and each student got equal number of books.
(a) Find the number of books each student got.
(b) Find the total number of students who got books.
(a)   (b)
(A) 4    14
(B) 3    10
(C) 4    10
(D) 3    15

Ans.

A

Question. Read the statements carefully and state ‘T’ for true and ‘F’ for false.
(i) 501/25 is a terminating decimal.
(ii) 621/125 is a non-terminating decimal.
(iii) 6805/27 × 52 is a non-terminating decimal.
(iv) 7105/7 × 52 is a terminating decimal.
(i)    (ii)   (iii)   (iv)
(A)    F       T       T       F
(B)    T       F       T       T
(C)    T       T       F       F
(D)    F       T       F       T

Ans.

B

Our teachers have developed really good Multiple Choice Questions covering all important topics in each chapter which are expected to come in upcoming tests and exams, as MCQs are coming in all exams now therefore practice them carefully to get full understanding of topics and get good marks. Download the latest questions with multiple choice answers for Class 9 Number System in pdf or read online for free.

The above NCERT based MCQs for Class 9 Number System have been designed by our teachers in such a way that it will help you a lot to gain an understanding of each topic. These CBSE NCERT Class 9 Number System Multiple Choice Questions have been developed and are available free for benefit of Class 9 students.

a) MCQs will help the kids to strengthen concepts and improve marks in tests and exams.

b) Number System Class 9 MCQ Questions have proven to further enhance the understanding and question solving skills.

c) Regular reading topic wise questions with choices will for sure develop very good hold over each chapter which will help in exam preparations.

d) It will be easy to revise all Number System chapters and faster revisions prior to class tests and exams.

Free Printable MCQs in PDF of CBSE Class 9 Number System are designed by our school teachers and provide best study material as per CBSE NCERT standards.

Where can I get MCQs for Number System?

You can easily get MCQs for Number System from https://www.cbsencertsolutions.com

I want the latest MCQs based on this years syllabus ?

The MCQs for Class 9 Number System with Answers have been developed based on current NCERT textbook issued by CBSE.

Are all chapters covered ?

MCQs cover the topics of all chapters given in NCERT Book for Class 9 Number System.

Can I print these MCQs ?

Yes – These Multiple Choice Questions for Class 9 Number System with Answers are free to print and use them later.

Are these free or is there any charge for these MCQs ?

No – All MCQs for Number System are free to read for all students.