Maths MCQ For Class 9 With Answers

Class 9 is the path to the board class and it also comprises the basics of Class 11 and 12 Maths, which you need to have a good hold on. The best method of gaining command over a practical subject like Maths is practice, practice, and practice. MCQ questions with multiple choice help students in the decision-making process. That's why for a greater understanding, our platform provides you with the solved MCQ For Class 9 Maths, which are consistently updated as per the latest trends on our website.

Maths MCQ For Class 9 With Answers are available in a free downloadable format which is accessible on all the devices that you can download anytime, anywhere.

Here, on this page, we will understand the importance of MCQ Questions For Class 9 Maths and the latest update in the CBSE syllabus 2021-22.

MCQ For Class 9 Maths: List of Important Questions

Chapter 1: MCQ questions for class 9 maths number system with answers PDF

1. Is zero a rational number? Can we write zero in the form of p/q, where q 0?

1. Yes

2. No

Ans: Yes. Zero is a rational number as we can write it in the form of p/q.

Explanation:

We all know that a rational number can be written in the form of p/q, only when q \[\neq\] 0.

Taking zero as examples:

0/1, 0/2, 0/3, 0/,.....,- 0/16

From here, we see that 0 is a rational number.

2. State whether every point on the number line is of the form \[\sqrt{n}\] is a natural number or not.

1. Yes

2. No

3. Unsure

Ans: No. Not every point on the number pertaining to \[\sqrt{n}\] is a natural number.

Explanation:

Let us assume the following numbers:

1. \[\sqrt{9}\]= 3

2. \[\sqrt{16}\]= 4

3. \[\sqrt{3}\]= 1.732

4. \[\sqrt{5}\]= 2.24

Here, we notice that the square roots of 9 and 16 are natural numbers, however, \[\sqrt{3}\] and \[\sqrt{5}\] are not natural. So, we infer that not every number representing \[\sqrt{n}\] is a natural number.

3. 1/11 is what kind of decimal?

1. Terminating

2. Non-terminating

3. Terminating and repeating

4. Non-terminating and repeating

Ans: Non-terminating and repeating

Explanation:

On dividing 1 by 11, we get 0.0909…….. So we write these never-ending repetitions as 0.09\[^{-}\] (non-terminating and repeating decimals).

Chapter 2: Linear Equations in Two Variables Class 9 MCQ With Answers

4. Which of the following given expressions in options are polynomials in one variable? State reasons for your answer.

1. 4x2 - 3x + 7

2. y2  + \[\sqrt{2}\]

3. 3\[\sqrt{t}\] + \[\sqrt{2t}\]

4. x10 + y3 + t50

Ans: Both options a and b are polynomials in one variable

Explanation:

Let’s look at how to option a is correct:

Here, x is the only variable in the given expression that has the powers of 2, 1, and 0, respectively, as whole numbers.  Thus, we can say that the expression 4x2 - 3x + 7 is a polynomial in one variable.

Now, option (b):

y2  + \[\sqrt{2}\]can be written as y2  + \[\sqrt{2}\]y0 , where 0 and 2 are whole numbers. Therefore, we can say that y2  +\[\sqrt{2}\] is a polynomial in one variable. 

5. The value of q (1), q (2), and q (3) for the following polynomial will be?

q (x) = x2 - x + 1 

1. 1, 3, 7

2. 1, 1, 3

3. 2, 4, 4

4. 0, 8, 1

Ans: option b: 1, 3, and 4

Explanation:

Putting q = 1

q (1):

= 12 - 1 + 1 =  1

Putting q  = 2

q (2):

= 22 - 2 + 1 =  3

Putting q  = 3

q (3):

= 32 - 3 + 1 =  7

Therefore, the value of q (1), q (2), and q (3) is 1, 3, and 7, respectively.

Chapter 13: MCQ on Surface Area and Volume Class 9 With Answers

6. The formula to find the surface area of a cuboid of given length (a), breadth (b) and height (c) will be:

1. ab+bc+ca

2. 2 (ab+bc+ca)

3. 2 (abc)

4. abc/2

Ans: Option (b): 2 (ab+bc+ca)

7. We are given that the radius of a hemispherical shell rises from 8 cm to 16 cm when the air is being pumped into it. The ratio of the surface areas of the shell in the two cases is:

1. 5: 4

2. 2: 4

3. 4: 9

4. 2: 1

Ans: Option c: 4: 9

Explanation:

We know that the surface area of the hemisphere is 3\[\pi^{2}\].

T.S.A (1) = 3 \[\pi^{2} = 3x (8)^{2} = 192cm^{2}\]

T.S.A (2) = 3 \[\pi^{2} = 3x (12)^{2} = 432cm^{2}\] 

Now, the ratio will be:

T.S.A (2) / T.S.A (2) = 192 / 432  =  4/9

Chapter 15: MCQ Questions on Probability Class 9

8. Which of the following options cannot be the empirical probability of an occurrence?

1. 3/3

2. 2/3

3. 3/2

4. 1

Ans: Option c: 3/2

Explanation:

If ‘f’ is the number of times a particular event occurs and ‘n’ is the number of trials taken, then the empirical probability formula is given as:

=  f/n

Plainly, we say that the empirical probability interprets the probability of an event occurring based on historical data.

Let us assume that you throw dice three times and you get the following data as the result:

Here, if you were expecting ‘4’ as an outcome, the empirical probability of rolling a 4 is 0%.

Similarly, you distributed two chocolates among your two siblings and it is not sure whether you will divide the two halves of the third chocolate among them or not. Therefore, 3/2 is not an empirical probability of this distribution.

9. A bag comprises 16 cards labelled as number 1, 2, 3 …., 16, respectively. Consider that one card is drawn at random. Determine the probability of the number shown is divisible by 3.

1. 3/16

2. 5/16

3. 15/16

4. 11/16

Ans: Option (b): 5/16

Explanation:

We see that the numbers are from 1 to 16, so let us apply the concept for the number of terms divisible by 3, i.e., 3n = 3, 6, 9, 12, 15

So, there are 5 terms and the probability will be: number of terms/ total terms = 5/16.

10. Determine the number of planks of dimensions: 4 m × 50 cm × 20 cm that can be kept in a  box of dimensions 16 m long, 12m wide and 4 m deep.

1. 1900

2. 1920

3. 1800

4. 1840

Ans: b

Explanation:

Volume of Plank:

= 500 cm × 80 cm × 60 cm= 2,400,000 cm3

Volume of a boxe:

= 1800 cm × 1200 cm × 450 cm = 972,000,000 cm3

Number of planks will be:

Volume of planks / Volume of boxe = 972,000,000 / 2,400,000  

Solving the ratio we get =  405

Therefore, the number of pits = 405

So, these Maths MCQ For Class 9 With Answers, you can download all the chapters starting from MCQ questions for class 9 maths NCERT chapter 1 till Chapter 15.

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Below are the salient features of MCQ questions for class 9 maths with answers PDF:

• Easy access to all the questions.

• Free downloadable set of latest questions and answers.

• Previous Year’s Question Papers for smooth preparation of Class 9 Maths exam.

• Sample papers for brushing up mathematical concepts.

Class 9 Maths - Facts and Information 

1. The most important topics for the Subject Assessment - 1 as per the NCERT guidelines 2021-22 are:

• Chapter 1: Number Systems.

• Chapter 2: Polynomials.

• Chapter 3: Coordinate Geometry.

• Chapter 5: Introduction to Euclid's Geometry.

• Chapter 12: Heron's Formula

2. Preparing a notebook of important formulas and theorems helps you do a last-minute revision to score well in your exam.

Tips to Score High in Class 9 Exams: Our Expert Tips

Our experts have suggested the following tips to help you crack the Class 9 exam with a high score; these are as follows:

• Practice as much as you can because Maths is a practical subject.

• Solve a variety of questions from back-to-basics to advanced level. Never switch to solving complex problems.

• Gather all your doubts then ask your experts. Rather than sticking at one, switch to the next question because It's easy to get stuck in a doubt in Maths. 

• Note down all the important formulas. 

• Understand the important derivations.