Reasoning

Number Classification and Analogy

143 Questions

Number classification and analogy questions test logical reasoning by identifying numerical relationships. Candidates must detect the underlying pattern among number sets. This topic is a staple in the reasoning sections of SSC, banking, and railway exams.

Number analogiesOdd one outNumerical relationshipsPattern identificationSet matching

Number Classification and Analogy Questions

Multiple choice

Directions: In the following question, there is a certain relationship between two given numbers on one side of (: :) and one number is given on the other side of (: :) while another number is to be found from the given alternatives having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.

4 : 24 : : 6 : ?

  1. 24

  2. 48

  3. 72

  4. 12

  5. 216
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. This follows the correct pattern of x : x(x + 2). Here, if x = 4, then x(x + 2) = 4(4 + 2) = 4 * 6 = 24. If x = 6, then x(x + 2) = 6(6 + 2) = 6 * 8 = 48.

Multiple choice

Directions: In the following question, there is a certain relationship between two given numbers on one side of (: :) and one number is given on the other side of (: :) while another number is to be found from the given alternatives having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.

9 : 100 : : 11 : ?

  1. 1331

  2. 121

  3. 169

  4. 1728

  5. 144
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option as it follows the correct pattern of x : (x + 1)2. If x = 9, then (9 + 1)2 = 100. If x = 11, then (11 + 1)2 = 144.

Multiple choice

Directions: In the following question, there is a certain relationship between two given numbers on one side of (: :) and one number is given on the other side of (: :), while another number is to be found from the given alternatives having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.

8 : 32 : : 12 : ?

  1. 72

  2. 864

  3. 36

  4. 144

  5. 6
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option as it follows the correct relationship of x : x2/2, where x = 8 and x2/2 = 64/2 = 32. If x = 12, then 144/2 = 72.

Multiple choice

Directions: In the following question, there is a certain relationship between two given numbers on one side of (: :) and one number is given on the other side of (: :) while another number is to be found from the given alternatives having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.

9 : 25 : : 36 : ?

  1. 81

  2. 25

  3. 64

  4. 512

  5. 729
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option as it follows the correct pattern of (x - 1)2 : (x + 1)2. So, if x = 4, then (4 - 1)2 = 9 and (4 + 1)2 = 25. If x = 7, then (7 - 1)2 = 36 and (7 + 1)2 = 64. 

Multiple choice

Directions: In the following question, there is a certain relationship between two given numbers on one side of (: :) and one number is given on the other side of (: :) while another number is to be found from the given alternatives having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.

15 : 50 : : 25 : ?

  1. 70

  2. 60

  3. 50

  4. 7

  5. 30
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option as it follows the correct pattern of 5x : 10(x + 2). If x = 3, then 5*3 = 15 and 10(3 + 2) = 50. If x = 5, then 5*5 = 25 and 10(5 + 2) = 70.

Multiple choice

Directions: In the following question, there is a certain relationship between two given numbers on one side of (: :) and one number is given on the other side of (: :) while another number is to be found from the given alternatives having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.

81 : 729 : : 144 : ?

  1. 1728

  2. 6

  3. 20736

  4. 4

  5. 243
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is the correct option as it follows the correct pattern of x2 : x3. If x = 9, then x2 = 81 and x3 = 729. If x = 12, then x2 = 144 and x3 = 1728.