Logical Reasoning MCQs with Answers for JKSSB, SSC & Banking Exams

Question #21

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Find the next number in the series: 2, 6, 12, 20, 30, ?

A. 42

B. 46

C. 40

D. 44

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Correct Answer: Option A

Explanation:
Differences are +4, +6, +8, +10; next difference is +12. 30+12=42.

This question belongs to: Reasoning Logical Reasoning

Question #22

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Choose the odd one out: Ear, Nose, Eye, Hand

A. Eye

B. Hand

C. Ear

D. Nose

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Correct Answer: Option B

Explanation:
Ear, nose and eye are sensory organs; hand is not primarily a sensory organ.

This question belongs to: Reasoning Logical Reasoning

Question #23

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Find the next number in the series: 1, 4, 9, 16, 25, ?

A. 30

B. 49

C. 35

D. 36

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Correct Answer: Option D

Explanation:
The series is of squares: 1², 2², 3², 4², 5²; next is 6²=36.

This question belongs to: Reasoning Logical Reasoning

Question #24

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Odometer is to Distance as Barometer is to ______.

A. Rain

B. Humidity

C. Pressure

D. Temperature

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Correct Answer: Option C

Explanation:
An odometer measures distance; a barometer measures atmospheric pressure.

This question belongs to: Reasoning Logical Reasoning

Question #25

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11 is to 121 as 13 is to ______.

A. 156

B. 196

C. 169

D. 144

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Correct Answer: Option C

Explanation:
121 is the square of 11; similarly, 13² = 169.

This question belongs to: Reasoning Logical Reasoning

Question #26

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Fish is to Aquarium as Bird is to ______.

A. Cage

B. Nest

C. Aviary

D. Zoo

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Correct Answer: Option C

Explanation:
Fish are kept in an aquarium; birds are kept in an aviary.

This question belongs to: Reasoning Logical Reasoning

Question #27

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Polygon is to Perimeter as Circle is to ______.

A. Radius

B. Circumference

C. Area

D. Diameter

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Correct Answer: Option B

Explanation:
Perimeter is the boundary length of a polygon; circumference is the boundary length of a circle.

This question belongs to: Reasoning Logical Reasoning

Question #28

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Book is to Library as Data is to ______.

A. Server

B. File

C. Internet

D. Database

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Correct Answer: Option D

Explanation:
Books are stored in a library; data is stored in a database.

This question belongs to: Reasoning Logical Reasoning

Question #29

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Pen is to Write as Spade is to ______.

A. Plant

B. Water

C. Dig

D. Cut

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Correct Answer: Option C

Explanation:
A pen is used for writing; a spade is used for digging.

This question belongs to: Reasoning Logical Reasoning

Question #30

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Choose the odd one out: January, March, July, September

A. March

B. September

C. January

D. July

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Correct Answer: Option B

Explanation:
January, March and July have 31 days; September has 30 days.

This question belongs to: Reasoning Logical Reasoning

Question #31

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Find the next number in the series: 2, 3, 5, 8, 13, ?

A. 20

B. 18

C. 24

D. 21

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Correct Answer: Option D

Explanation:
Each term is the sum of the previous two terms: 8+13=21.

This question belongs to: Reasoning Logical Reasoning

Question #32

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Find the next number in the series: 5, 10, 20, 40, ?

A. 100

B. 70

C. 60

D. 80

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Correct Answer: Option D

Explanation:
Each term is multiplied by 2. 40×2=80.

This question belongs to: Reasoning Logical Reasoning

Question #33

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Find the next number in the series: 7, 13, 25, 49, ?

A. 97

B. 99

C. 95

D. 91

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Correct Answer: Option A

Explanation:
Pattern: double and subtract 1. 7×2−1=13; 13×2−1=25; 25×2−1=49; 49×2−1=97.

This question belongs to: Reasoning Logical Reasoning

Question #34

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Find the next number in the series: 3, 6, 18, 72, ?

A. 324

B. 360

C. 216

D. 288

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Correct Answer: Option B

Explanation:
Multipliers are 2, 3, 4; next multiplier is 5. 72×5=360.

This question belongs to: Reasoning Logical Reasoning

Question #35

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Find the next number in the series: 100, 95, 85, 70, ?

A. 55

B. 50

C. 45

D. 40

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Correct Answer: Option B

Explanation:
Subtractions are 5, 10, 15; next subtraction is 20. 70−20=50.

This question belongs to: Reasoning Logical Reasoning

Question #36

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Find the next term in the series: AZ, BY, CX, DW, ?

A. EW

B. DU

C. EU

D. EV

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Correct Answer: Option D

Explanation:
First letters increase A, B, C, D, E; second letters decrease Z, Y, X, W, V.

This question belongs to: Reasoning Logical Reasoning

Question #37

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Find the next number in the series: 2, 5, 10, 17, 26, ?

A. 39

B. 41

C. 37

D. 35

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Correct Answer: Option C

Explanation:
Differences are +3, +5, +7, +9; next difference is +11. 26+11=37.

This question belongs to: Reasoning Logical Reasoning

Question #38

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Find the next number in the series: 121, 144, 169, 196, ?

A. 289

B. 256

C. 225

D. 216

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Correct Answer: Option C

Explanation:
The series is 11², 12², 13², 14²; next is 15²=225.

This question belongs to: Reasoning Logical Reasoning

Question #39

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Find the next number in the series: 1, 8, 27, 64, 125, ?

A. 216

B. 343

C. 225

D. 196

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Correct Answer: Option A

Explanation:
The series is 1³, 2³, 3³, 4³, 5³; next is 6³=216.

This question belongs to: Reasoning Logical Reasoning

Question #40

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Find the next number in the series: 64, 32, 16, 8, ?

A. 1

B. 2

C. 6

D. 4

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Correct Answer: Option D

Explanation:
Each term is divided by 2. 8÷2=4.

This question belongs to: Reasoning Logical Reasoning

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