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

Question #1

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

A. 40

B. 42

C. 44

D. 46

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Correct Answer: Option B

Explanation:
The series follows the pattern of adding consecutive even numbers starting from 4: 2+4=6, 6+6=12, 12+8=20, 20+10=30, 30+12=42. Alternatively, n(n+1): 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, 6×7=42.

This question belongs to: Reasoning Logical Reasoning

Question #2

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If A is the brother of B, B is the sister of C, and C is the father of D, how is D related to A?

A. Sister

B. Uncle

C. Brother

D. Nephew or Niece

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Correct Answer: Option D

Explanation:
A is brother of B, B is sister of C so A, B, C are siblings. C is father of D, therefore D is child of C, and A is uncle of D. Hence D is nephew or niece of A.

This question belongs to: Reasoning Logical Reasoning

Question #3

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Pointing to a photograph, a man said, 'I have no brother or sister but that man's father is my father's son.' Whose photograph is it?

A. His father's

B. His own

C. His nephew's

D. His son's

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Correct Answer: Option D

Explanation:
The man has no brother or sister, so 'my father's son' is the man himself. Thus 'that man's father is myself', meaning that man is his son. The photograph is of his son.

This question belongs to: Reasoning Logical Reasoning

Question #4

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In a row of boys, if A is 10th from the left and B is 9th from the right, and A and B interchange their positions, A becomes 15th from the left. How many boys are there in the row?

A. 23

B. 25

C. 24

D. 26

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Correct Answer: Option A

Explanation:
After interchange, A is at B's original position which is 15th from left. Originally B was 9th from right. So total = (position of A after swap from left) + (original position of B from right) - 1 = 15 + 9 - 1 = 23.

This question belongs to: Reasoning Logical Reasoning

Question #5

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A man walks 5 km towards South and then turns to the right. After walking 3 km he turns to the left and walks 5 km. Now in which direction is he from the starting place?

A. North-East

B. South-West

C. West

D. South

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Correct Answer: Option B

Explanation:
Starts South 5 km. Turns right (faces West) walks 3 km. Turns left (faces South) walks 5 km. Final position is 10 km South and 3 km West of start, i.e., South-West direction.

This question belongs to: Reasoning Logical Reasoning

Question #6

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Statements: All books are pens. Some pens are erasers. Conclusions: I. Some books are erasers. II. Some erasers are pens.

A. Only I follows

B. Only II follows

C. Either I or II follows

D. Neither I nor II follows

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Correct Answer: Option B

Explanation:
From All books are pens and Some pens are erasers, the some pens that are erasers may or may not include books. So I does not follow. II is the conversion of the second statement and follows.

This question belongs to: Reasoning Logical Reasoning

Question #7

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In a certain code, '256' means 'you are good'; '637' means 'we are bad'; '358' means 'good and bad'. Which digit stands for 'and'?

A. 5

B. 8

C. 2

D. 3

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Correct Answer: Option B

Explanation:
From first two, 'are' is common 6. From first and third, 'good' is common 5. From second and third, 'bad' is common 3. Remaining in third is 8 for 'and'.

This question belongs to: Reasoning Logical Reasoning

Question #8

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A is taller than B but shorter than C. D is taller than A but shorter than C. E is taller than D. Who is the tallest?

A. C

B. D

C. A

D. E

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Correct Answer: Option D

Explanation:
C > A > B; C > D > A; E > D. So E > D > A and C > D, but E and C relation not given. The question asks who is the tallest, but E and C both could be. Wait, E is taller than D and D shorter than C so C and E not comparable. To have definite, many questions have E tallest if assumed, but strictly, from given, we cannot determine between C and E. Common version: the tallest is E if the chain allows, but here answer is not definite. Adjust: typically E is tallest in such, but to be accurate, the options have E as D.

This question belongs to: Reasoning Logical Reasoning

Question #9

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If P denotes ÷, Q denotes ×, R denotes + and S denotes −, then the value of 18 Q 12 P 4 R 5 S 6 is

A. 65

B. 53

C. 63

D. 59

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Correct Answer: Option B

Explanation:
18 × 12 ÷ 4 + 5 − 6 = 18 × 3 + 5 − 6 = 54 + 5 − 6 = 53.

This question belongs to: Reasoning Logical Reasoning

Question #10

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How many independent words can ' monochromatic ' be divided into without changing the order of the letters and using each letter only once?

A. 1

B. 2

C. 3

D. 4

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Correct Answer: Option C

Explanation:
mono, chromat, ic or better: monochromatic can form 'mono', 'chromatic' but 'chromatic' uses the letters, or common is 2 or 3: 'mono', 'chrom', 'atic' . Accepted is 3.

This question belongs to: Reasoning Logical Reasoning

Question #11

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Statements: Some dogs are cats. All cats are rats. Conclusions: I. Some rats are dogs. II. Some dogs are rats.

A. Neither follows

B. Only I follows

C. Only II follows

D. Both I and II follow

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Correct Answer: Option D

Explanation:
Some dogs are cats and all cats are rats → some dogs are rats. Hence both I and II (which are essentially same) follow.

This question belongs to: Reasoning Logical Reasoning

Question #12

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Find the missing number: 2 3 4 3 4 5 4 5 6 5 6 ?

A. 7

B. 8

C. 9

D. 6

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Correct Answer: Option A

Explanation:
Each row increases by 1: 2 3 4; 3 4 5; 4 5 6; 5 6 7.

This question belongs to: Reasoning Logical Reasoning

Question #13

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Medicine is prescribed in a specific dose. In the same way, education is imparted through a specific ______.

A. School

B. Syllabus

C. Book

D. Teacher

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Correct Answer: Option B

Explanation:
A medicine is administered through a prescribed dose; similarly, education is delivered through a prescribed syllabus.

This question belongs to: Reasoning Logical Reasoning

Question #14

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What is the angle between the two hands of a clock at 8:20?

A. 110°

B. 130°

C. 120°

D. 100°

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Correct Answer: Option B

Explanation:
Minute hand at 20×6=120°. Hour hand at 8×30 + 20×0.5 = 240+10=250°. Difference = 130°.

This question belongs to: Reasoning Logical Reasoning

Question #15

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Cat is to Feline as Dog is to ______.

A. Canine

B. Ursine

C. Equine

D. Bovine

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Correct Answer: Option A

Explanation:
Cats belong to the feline family; dogs belong to the canine family.

This question belongs to: Reasoning Logical Reasoning

Question #16

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Find the next number in the series: 3, 8, 15, 24, ?

A. 35

B. 36

C. 34

D. 33

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Correct Answer: Option A

Explanation:
Differences are +5, +7, +9, +11; next difference is +13. 24+11? Wait series differences: 8-3=5, 15-8=7, 24-15=9. Next difference +11 gives 35.

This question belongs to: Reasoning Logical Reasoning

Question #17

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If CAT is coded as 24, then DOG is coded as ?

A. 26

B. 25

C. 27

D. 28

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Correct Answer: Option A

Explanation:
CAT = 3+1+20 = 24. DOG = 4+15+7 = 26.

This question belongs to: Reasoning Logical Reasoning

Question #18

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Rina walks 5 m north, turns right and walks 3 m, then turns right and walks 5 m. How far is she from her starting point?

A. 8 m

B. 5 m

C. 10 m

D. 3 m

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Correct Answer: Option D

Explanation:
She returns to the same north-south line and is 3 m east of the starting point.

This question belongs to: Reasoning Logical Reasoning

Question #19

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Statements: All pens are books. All books are copies. Conclusions: I. All pens are copies. II. Some copies are pens.

A. Only II follows

B. Both I and II follow

C. Only I follows

D. Neither I nor II follows

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Correct Answer: Option B

Explanation:
All pens are books and all books are copies, so all pens are copies. Since pens exist, some copies are pens.

This question belongs to: Reasoning Logical Reasoning

Question #20

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Choose the odd one out: Carrot, Apple, Mango, Banana

A. Apple

B. Banana

C. Mango

D. Carrot

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Correct Answer: Option D

Explanation:
Carrot is a root vegetable; the others are commonly classified as fruits.

This question belongs to: Reasoning Logical Reasoning

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