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

Question #41

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Find the next number in the series: 1, 3, 7, 15, 31, ?

A. 64

B. 65

C. 63

D. 62

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Correct Answer: Option C

Explanation:
Pattern: double and add 1. 31×2+1=63.

This question belongs to: Reasoning Logical Reasoning

Question #42

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Find the next number in the series: 5, 11, 23, 47, ?

A. 99

B. 97

C. 95

D. 93

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Correct Answer: Option C

Explanation:
Pattern: double and add 1. 47×2+1=95.

This question belongs to: Reasoning Logical Reasoning

Question #43

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Find the next number in the series: 2, 6, 12, 20, 30, 42, ?

A. 56

B. 52

C. 60

D. 50

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Correct Answer: Option A

Explanation:
Differences are +4, +6, +8, +10, +12; next difference is +14. 42+14=56.

This question belongs to: Reasoning Logical Reasoning

Question #44

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Find the next number in the series: 0, 3, 8, 15, 24, ?

A. 35

B. 32

C. 36

D. 30

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Correct Answer: Option A

Explanation:
Series is n²−1: 1²−1=0, 2²−1=3, 3²−1=8, 4²−1=15, 5²−1=24; next 6²−1=35.

This question belongs to: Reasoning Logical Reasoning

Question #45

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Find the next number in the series: 2, 4, 8, 16, 32, 64, ?

A. 256

B. 144

C. 96

D. 128

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Correct Answer: Option D

Explanation:
Each term is multiplied by 2. 64×2=128.

This question belongs to: Reasoning Logical Reasoning

Question #46

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Find the next number in the series: 6, 11, 21, 36, 56, ?

A. 76

B. 91

C. 81

D. 86

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Correct Answer: Option C

Explanation:
Differences are +5, +10, +15, +20; next difference is +25. 56+25=81.

This question belongs to: Reasoning Logical Reasoning

Question #47

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Find the next number in the series: 1, 2, 6, 24, 120, ?

A. 840

B. 640

C. 600

D. 720

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Correct Answer: Option D

Explanation:
Multipliers are 2, 3, 4, 5; next multiplier is 6. 120×6=720.

This question belongs to: Reasoning Logical Reasoning

Question #48

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Find the next number in the series: 3, 9, 27, 81, ?

A. 243

B. 216

C. 180

D. 162

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Correct Answer: Option A

Explanation:
Each term is multiplied by 3. 81×3=243.

This question belongs to: Reasoning Logical Reasoning

Question #49

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Choose the odd one out: 27, 64, 100, 125

A. 64

B. 100

C. 27

D. 125

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Correct Answer: Option B

Explanation:
27, 64 and 125 are perfect cubes; 100 is not a perfect cube.

This question belongs to: Reasoning Logical Reasoning

Question #50

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If PEN = 35, then INK = ?

A. 36

B. 30

C. 32

D. 34

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Correct Answer: Option D

Explanation:
PEN = 16+5+14 = 35. INK = 9+14+11 = 34.

This question belongs to: Reasoning Logical Reasoning

Question #51

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If RAT is coded as SBU, then CAT is coded as ?

A. CBU

B. DBU

C. DAV

D. DBT

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Correct Answer: Option B

Explanation:
Each letter is shifted one place forward: C→D, A→B, T→U = DBU.

This question belongs to: Reasoning Logical Reasoning

Question #52

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If APPLE is coded as BQQMF, then MANGO is coded as ?

A. MBOHP

B. NBOHP

C. NBPHQ

D. NBOHN

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Correct Answer: Option B

Explanation:
Each letter is shifted one place forward: M→N, A→B, N→O, G→H, O→P = NBOHP.

This question belongs to: Reasoning Logical Reasoning

Question #53

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If DELHI is coded as CDKGH, then LUCKNOW is coded as ?

A. KTBJNMV

B. KUBJMNV

C. KTBJMNW

D. KTBJMNV

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Correct Answer: Option D

Explanation:
Each letter is shifted one place backward: L→K, U→T, C→B, K→J, N→M, O→N, W→V = KTBJMNV.

This question belongs to: Reasoning Logical Reasoning

Question #54

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If TABLE is coded as UBCMF, then CHAIR is coded as ?

A. DHBJS

B. DIBSJ

C. DIBJS

D. DIBJR

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Correct Answer: Option C

Explanation:
Each letter is shifted one place forward: C→D, H→I, A→B, I→J, R→S = DIBJS.

This question belongs to: Reasoning Logical Reasoning

Question #55

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If SUN is coded as TVO, then MOON is coded as ?

A. NPPO

B. NPOP

C. NOPP

D. NQQP

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Correct Answer: Option A

Explanation:
Each letter is shifted one place forward: M→N, O→P, O→P, N→O = NPPO.

This question belongs to: Reasoning Logical Reasoning

Question #56

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If LOGIC is coded as MPHJD, then THINK is coded as ?

A. UIJPL

B. UIKOL

C. UIJOL

D. UJJOM

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Correct Answer: Option C

Explanation:
Each letter is shifted one place forward: T→U, H→I, I→J, N→O, K→L = UIJOL.

This question belongs to: Reasoning Logical Reasoning

Question #57

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If COLD is coded as EPMF, then HOT is coded as ?

A. JQV

B. JPU

C. IQV

D. JQW

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Correct Answer: Option A

Explanation:
Each letter is shifted two places forward: H→J, O→Q, T→V = JQV.

This question belongs to: Reasoning Logical Reasoning

Question #58

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If JAM is coded as LCO, then TEA is coded as ?

A. VGB

B. WHD

C. VGC

D. UFC

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Correct Answer: Option C

Explanation:
Each letter is shifted two places forward: T→V, E→G, A→C = VGC.

This question belongs to: Reasoning Logical Reasoning

Question #59

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A is B's brother. C is A's father. D is C's sister. How is D related to B?

A. Paternal aunt

B. Mother

C. Maternal aunt

D. Sister

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Correct Answer: Option A

Explanation:
C is father of both A and B. D is C's sister, so D is B's paternal aunt.

This question belongs to: Reasoning Logical Reasoning

Question #60

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A and B are brothers. C is A's mother. D is C's father. E is D's son. How is E related to B?

A. Brother

B. Paternal uncle

C. Grandfather

D. Maternal uncle

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Correct Answer: Option D

Explanation:
C is mother of A and B. D is C's father, so E, being D's son, is C's brother and B's maternal uncle.

This question belongs to: Reasoning Logical Reasoning

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