Classification MCQ Quiz - Objective Question with Answer for Classification - Download Free PDF

Last updated on Jun 9, 2025

Latest Classification MCQ Objective Questions

Classification Question 1:

Read the following terms and determine which one is inconsistent in this group.

mean, range, variance, standard deviation, mode, refraction

  1. Mean
  2. Variance
  3. Standard Deviation
  4. Refraction
  5. None of the above

Answer (Detailed Solution Below)

Option 4 : Refraction

Classification Question 1 Detailed Solution

The Logic here is as follows:

Terms Subject
Mean Statistics
Range Statistics
Variance Statistics
Standard Deviation Statistics
Mode Statistics
Refraction Physics

 

Mean, Range, Variance, Standard deviation, and mode are part of Statistics.

Whereas, Refraction is a topic related to Physics.

Hence, the correct answer is "Refraction".

Additional Information

Mean: In mathematics and statistics, the arithmetic mean, or simply the mean or the average, is the sum of a collection of numbers divided by the count of numbers in the collection.

Range: In statistics, the Range is the difference between the lowest and highest values.

Variance: In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its mean. In other words, it measures how far a set of numbers is spread out from their average value.

Standard Deviation: In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values.

Mode: The mode is a statistical term that refers to the most frequently occurring number found in a set of numbers.

Refraction: In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.

Classification Question 2:

Find the odd numbers from the given alternatives.

  1. 121
  2. 81
  3. 169
  4. 49
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : 81

Classification Question 2 Detailed Solution

The logic follows here is:-

Square root of each number gives a prime number, except 9.

Let's check each option:-

1) 121 = (11). Here 11 is prime number.

2) 81 = (9). Here 9 is not prime number.

3) 169 = (13). Here 13 is prime number.

4) 49 = (7). Here 7 is prime number.

Hence, '81' is odd number among given alternatives.

Classification Question 3:

Four numbers have been given out of which three are alike in some manner, while one is different.

Choose the odd one.

  1. 125
  2. 729
  3. 1321
  4. 343
  5. None of the above

Answer (Detailed Solution Below)

Option 3 : 1321

Classification Question 3 Detailed Solution

Here the logic is:

All options are cube of a perfect number but option 3 is not a cube of perfect number.

1) 125 → ∛125 → 5

2) 729 → ∛729 → 9

3) 1321 → ∛1321 → 10.96

4) 343 → ∛343 → 7

Hence, ‘1321’ is the correct answer

Classification Question 4:

F1 Madhuri Railways 22.03.2022 D5

The image that doesn't belong to the group:

  1. D
  2. A
  3. C
  4. B
  5. None of the above

Answer (Detailed Solution Below)

Option 1 : D

Classification Question 4 Detailed Solution

The pattern followed here is:

  1. F1 Madhuri Railways 22.03.2022 D6 - 4 aeroplanes: 1 red, 1 blue, 1 yellow and 1 green.
  2. F1 Madhuri Railways 22.03.2022 D7 - 4 aeroplanes: 1 red, 1 blue, 1 yellow and 1 green.
  3. F1 Madhuri Railways 22.03.2022 D8 - 4 aeroplanes: red, blue, yellow and green.
  4. F1 Madhuri Railways 22.03.2022 D9 - 4 aeroplanes: 1 red, 2 blue, and 1 green

Hence, figure D is the correct answer.

Classification Question 5:

Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.

  1. D B Z X
  2. C A Y V
  3. T R P N
  4. N L J H
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : C A Y V

Classification Question 5 Detailed Solution

alpha teb (1)

The logic followed here is:

  1. D B Z X → D - 2 = B; B - 2 = Z; Z - 2 = X
  2. C A Y V → C - 2 = A; A - 2 = Y; Y - 3 = V
  3. T R P N → T - 2 = R; R - 2 = P; P - 2 = N
  4. N L J H → N - 2 = L; L - 2 = J; J - 2 = H

Hence, 'C A Y V' is the odd one out.

Top Classification MCQ Objective Questions

Three of the following four words are alike in a certain way and one is different. Select the odd one.

  1. Goggles
  2. Spectacles
  3. Bifocals
  4. Optical Reader

Answer (Detailed Solution Below)

Option 4 : Optical Reader

Classification Question 6 Detailed Solution

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As Goggles, spectacles and Bifocals are worn by human beings but Optical reader is not worn , It is a device found within most computer scanners that captures visual information and translates the image into digital information the computer is capable of understanding and displaying. 

Hence, option 4 is the correct answer.

Three of the following four words are alike in a certain way and one is different. Pick the odd one out.

  1. Hendecagon
  2. Hexagon
  3. Heptagon
  4. Pentagon

Answer (Detailed Solution Below)

Option 2 : Hexagon

Classification Question 7 Detailed Solution

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Here all the polygon are of odd number of sides except hexagone.

Hendecagon is a polygon of 11 sides, Heptagon is a polygon of 7 sides and Pentagon is a polygon of 5 sides.

Only Hexagon is an odd one here as it has even number of sides i.e. 6 sides.

Hence, option 2 is the correct answer.

Four options have been given out of which three are alike in some manner, while one is different. Choose the odd one.

  1. 2321
  2. 825
  3. 1521
  4. 968

Answer (Detailed Solution Below)

Option 3 : 1521

Classification Question 8 Detailed Solution

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The logic followed here is:

All the numbers except option (3), the given numbers are the multiple of 11. 

Option1: 2321 → Multiple of 11

Option2: 825 → Multiple of 11

Option3: 1521 → Not a multiple of 11

Option4: 968 → Multiple of 11

Therefore, 1521 is the odd one option.

Important Points

  • The priority will always be the prime number in the exams.
  • There are some standard rules which need to be followed while selecting the priority.
  • priority lists to be followed in exams according to their preferences are:
  1. Prime number.
  2. Square.
  3. Cube.
  4. Multiplication and divisions
  5. Addition and subtraction.
  • A prime number can be divided, without a remainder, only by itself and by 1.
  • Some facts about the Prime numbers:
  1. The only even prime number is 2. All other even numbers can be divided by 2.
  2. If the sum of a number's digits is a multiple of 3, that number can be divided by 3.
  3. No prime number greater than 5 ends in a 5. Any number greater than 5 that ends in a 5 can be divided by 5.
  4. Zero and 1 are not considered prime numbers.
  5. Except for 0 and 1, a number is either a prime number or a composite number. A composite number is defined as any number, greater than 1, that is not prime.

Out of the four words given below, three are similar in a certain way and one is different. Select that odd one.

  1. Spinach
  2. Onion
  3. Radish
  4. Turnip

Answer (Detailed Solution Below)

Option 1 : Spinach

Classification Question 9 Detailed Solution

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The odd one out is Spinach. As onion, radish and turnip grow underground but spinach doesn't grow underground.

Hence, option 1 is the correct answer.

Choose the odd one out of the given options.

  1. EKO
  2. JIU
  3. KVG
  4. QMJ

Answer (Detailed Solution Below)

Option 1 : EKO

Classification Question 10 Detailed Solution

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Common Diagram 28.01.2020 D1

Logic: For all the other option sum of place value is 40 e×cept “EKO”

EKO

5 + 11 + 15 = 31

JIU

10 + 9 + 21 = 40

KVG

11 + 22 + 7 = 40

QMJ

17 + 13 + 10 = 40

 

Hence, “EKO” is the correct answer.

Select the odd word from the given alternatives?

  1. P4
  2. S2
  3. O5
  4. I11

Answer (Detailed Solution Below)

Option 2 : S2

Classification Question 11 Detailed Solution

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Common Diagram 28.01.2020 D1

Logic: In the options the adding the number and place value of letter is 20.

1) P4 → 16 + 4 = 20

2) S2 → 19 + 2 = 21

3) O5 → 15 + 5 = 20

4) I11 → 09 + 11 = 20.

Hence, S2 is the odd one out.

Select the odd pair of words from the given alternatives.

  1. Kathakali : Kerala
  2. Odissi : Odisha
  3. Satria : Assam
  4. Bharatanatyam : Andhra Pradesh

Answer (Detailed Solution Below)

Option 4 : Bharatanatyam : Andhra Pradesh

Classification Question 12 Detailed Solution

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The logic followed is:

Classical dance form State
Kathakali Kerala
Odissi Odisha
Sataria Assam

 

All the others are correctly matched except Bharatanatyam which is the classical dance of Tamil Nadu, not Andhra Pradesh. 

Hence, the correct answer is "Bharatanatyam : Andhra Pradesh".

Additional Information

 List of all Classical Dances of India:

1. Bharatanatyam, from Tamil Nadu.

2. Kathak, from Uttar Pradesh.

3. Kathakali, from Kerala.

4. Kuchipudi, from Andhra Pradesh.

5. Odissi, from Odisha.

6. Sattriya, from Assam.

7. Manipuri, from Manipur.

8. Mohiniyattam, from Kerala.

Directions: In each of the following questions, certain pairs of words are given, out of which the words in all pairs except one, bear a certain common relationship. Choose the pair in which the words are differently related

  1. Sky : Cloud
  2. Purse : Wallet
  3. Cupboard : Almirah
  4. Chair : Stool

Answer (Detailed Solution Below)

Option 1 : Sky : Cloud

Classification Question 13 Detailed Solution

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By checking options:

(1) Sky : Cloud → Cloud is not a type of Sky. 

(2) Purse : Wallet → Wallet is a type of Purse.

(3) Cupboard : Almirah → Almirah is a type of Cupboard.

(4) Chair : Stool → Stool is a type of Chair.

Hence, Sky : Cloud is the odd one out.

Four letter-cluster have been given, out of which three are alike in some manner and one is different. Select the odd one.

  1. SUWY
  2. YACF
  3. LNPR
  4. ZBDF

Answer (Detailed Solution Below)

Option 2 : YACF

Classification Question 14 Detailed Solution

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The pattern followed here is:

quesImage264

According to the alphabetical positions of the letters,

1) SUWY → S + 2 = U; U + 2 = W; W + 2 = Y

2) YACF → Y + 2 = A; A + 2 = C; C + 2 = E ≠ F

3) LNPR → L + 2 = N; N + 2 = P; P + 2 = R

4) ZBDF → Z + 2 = B; B + 2 = D; D + 2 = F

Hence, 'YACF' is the odd one out.

Three of the following four words have a certain type of similarity and one is different from the other. Select the odd one out.

  1. Herd
  2. Hut
  3. House
  4. Igloo

Answer (Detailed Solution Below)

Option 1 : Herd

Classification Question 15 Detailed Solution

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All options except 'herd' are names of different types of construction made by humans so that they can stay/live under them, while 'herd' refers to a large number of animals that live and feed together.

Hence, 'herd' is the odd one out.

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