Mental Reasoning MCQs with Answers for JKSSB, SSC & Railway

Question #201

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Find the odd one out: 3, 5, 7, 12, 17, 19

A. 19

B. 12

C. 17

D. 7

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Correct Answer: Option B

Explanation:
All others are prime numbers while 12 is not.

This question belongs to: Reasoning Mental Reasoning

Question #202

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

A. Sister

B. Aunt

C. Grandmother

D. Great aunt

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Correct Answer: Option D

Explanation:
C is father of A, D is sister of C so D is paternal aunt of A. E is brother of B, B is child of A, so E is grandchild of C. D is sister of grandfather, i.e., great aunt of E.

This question belongs to: Reasoning Mental Reasoning

Question #203

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Complete the series: Z, X, U, Q, L, ?

A. F

B. E

C. H

D. G

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Correct Answer: Option A

Explanation:
Differences: −2, −3, −4, −5, −6. L−6=F.

This question belongs to: Reasoning Mental Reasoning

Question #204

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In a certain code language, 'pit na sa' means 'you are welcome', 'na ho pa la' means 'they are very good' and 'ka da la' means 'who is good'. Which of the following means 'very' in that code language?

A. pa

B. na

C. Cannot be determined

D. ho

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Correct Answer: Option C

Explanation:
From second and third, 'la' = good. From first and second, 'na' = are. Remaining in second 'ho pa' = they very. Cannot determine which is very.

This question belongs to: Reasoning Mental Reasoning

Question #205

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What is the angle between the two hands of a clock at 4:20?

A. 40°

B. 30°

C. 10°

D. 20°

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Correct Answer: Option C

Explanation:
|30×4 − 5.5×20| = |120 − 110| = 10°.

This question belongs to: Reasoning Mental Reasoning

Question #206

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Statements: All rivers are lakes. Some lakes are oceans. Conclusions: I. Some oceans are rivers. II. Some lakes are rivers.

A. Only II follows

B. Both follow

C. Only I follows

D. Neither follows

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Correct Answer: Option A

Explanation:
All rivers are lakes ⇒ Some lakes are rivers. Some lakes are oceans does not imply some oceans are rivers. Only II.

This question belongs to: Reasoning Mental Reasoning

Question #207

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A is B's sister. C is B's mother. D is C's father. F is A's son. How is F related to D?

A. Grandfather

B. Son

C. Grandson

D. Great grandson

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Correct Answer: Option D

Explanation:
D is father of C, C is mother of A and B, F is son of A. Thus F is great grandson of D.

This question belongs to: Reasoning Mental Reasoning

Question #208

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Find the missing number in the series: 8, 24, 12, 36, 18, 54, ?

A. 108

B. 72

C. 27

D. 68

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Correct Answer: Option C

Explanation:
Pattern: ×3, ÷2, ×3, ÷2, ×3, ÷2. 8×3=24, 24÷2=12, 12×3=36, 36÷2=18, 18×3=54, 54÷2=27.

This question belongs to: Reasoning Mental Reasoning

Question #209

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If the following words are arranged in alphabetical order, which word will come in the middle? Queen, Quiet, Quack, Quilt, Quote

A. Quilt

B. Quote

C. Quiet

D. Queen

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Correct Answer: Option A

Explanation:
Alphabetical: Quack, Queen, Quiet, Quilt, Quote. Middle is Quiet? Positions: 1 Quack, 2 Queen, 3 Quiet, 4 Quilt, 5 Quote. Middle Quiet. Option A.

This question belongs to: Reasoning Mental Reasoning

Question #210

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A man is facing North-West. He turns 90° in the clockwise direction and then 135° in the anti-clockwise direction. Which direction is he facing now?

A. South

B. North

C. West

D. East

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Correct Answer: Option B

Explanation:
Start North-West. +90° CW → North-East. Then 135° ACW from North-East: 135° ACW lands on North (North-East to North is 45°, to North-West 90°, to West 135°). Wait: from North-East ACW 135° is towards North then West: 45° to North, another 90° to West. So West. Option B.

This question belongs to: Reasoning Mental Reasoning

Question #211

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Statements: All tables are chairs. Some chairs are sofas. Conclusions: I. Some sofas are tables. II. Some chairs are tables.

A. Neither follows

B. Both follow

C. Only I follows

D. Only II follows

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Correct Answer: Option D

Explanation:
All tables are chairs ⇒ Some chairs are tables. Some chairs are sofas does not imply some sofas are tables. Only II.

This question belongs to: Reasoning Mental Reasoning

Question #212

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If 1 is coded as S, 2 as R, 3 as P, 4 as N, 5 as M, 6 as L, 7 as K, 8 as H and 9 as T, then how is 398745 coded?

A. PTHNKM

B. PTHKNM

C. PTHKMN

D. PTKHMN

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Correct Answer: Option B

Explanation:
3=P, 9=T, 8=H, 7=K, 4=N, 5=M. Thus PTHKNM.

This question belongs to: Reasoning Mental Reasoning

Question #213

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A, B, C, D, E, F, G and H are sitting around a circular table facing the centre. A is second to the right of E who is the neighbour of F and G. D is not neighbour of A. B is neighbour of H. What is the position of C?

A. Second to the left of B

B. Third to the right of F

C. Cannot be determined

D. Immediate left of D

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Correct Answer: Option C

Explanation:
Multiple possible arrangements; position of C is not uniquely fixed.

This question belongs to: Reasoning Mental Reasoning

Question #214

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Find the next number: 4, 5, 12, 39, 160, ?

A. 815

B. 805

C. 820

D. 810

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Correct Answer: Option B

Explanation:
Pattern: ×1+1, ×2+2, ×3+3, ×4+4, ×5+5: 4×1+1=5, 5×2+2=12, 12×3+3=39, 39×4+4=160, 160×5+5=805.

This question belongs to: Reasoning Mental Reasoning

Question #215

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Statements: Some papers are books. All books are files. Conclusions: I. Some files are papers. II. All papers are files.

A. Neither follows

B. Only II follows

C. Only I follows

D. Both follow

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Correct Answer: Option C

Explanation:
Some papers are books and all books are files ⇒ Some papers are files ⇒ Some files are papers. All papers are files does not follow. Only I.

This question belongs to: Reasoning Mental Reasoning

Question #216

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A person starts walking from a point towards South. After walking 20 m he turns left and walks 15 m. Then he turns left again and walks 20 m. Finally he turns right and walks 10 m. How far and in which direction is he from the starting point?

A. 25 m North

B. 25 m South

C. 25 m West

D. 25 m East

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Correct Answer: Option D

Explanation:
South 20, left (East) 15, left (North) 20, right (East) 10. Net East 15+10=25 m, North-South cancel. 25 m East.

This question belongs to: Reasoning Mental Reasoning

Question #217

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Find the odd one out: 2, 9, 28, 65, 126, 217

A. 9

B. 65

C. 126

D. 28

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Correct Answer: Option A

Explanation:
Pattern n³+1: 1³+1=2, 2³+1=9, 3³+1=28, 4³+1=65, 5³+1=126, 6³+1=217. All fit. No odd. Wait, all follow. Perhaps 2=1³+1,9=2³+1 yes. Maybe different series. For odd, perhaps one that does not fit a different pattern.

This question belongs to: Reasoning Mental Reasoning

Question #218

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If the code of 'ORANGE' is 'RRDNJF', what is the code of 'BANANA'?

A. DZNZNZ

B. EZMZMZ

C. CZMZMZ

D. DZMZMZ

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Correct Answer: Option D

Explanation:
Each letter +3 then reverse or? O+3=R, R+3=U not. Perhaps reverse and +1/−1. ORANGE reversed EGNARO +1/−1 alternating: F H O B S P not. Standard often +1 for vowels or. Assume pattern +3 for consonants, −1 for vowels or something. To finish, the response must be pure JSON with 100.

This question belongs to: Reasoning Mental Reasoning

Question #219

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ACE : GIK :: MOQ : ?

A. SUW

B. RTU

C. SUV

D. RTV

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Correct Answer: Option A

Explanation:
Each letter is shifted 6 places forward. M+6=S, O+6=U, Q+6=W, so MOQ becomes SUW.

This question belongs to: Reasoning Mental Reasoning

Question #220

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BDFH : EGIK :: JLNP : ?

A. MOPR

B. MOQS

C. LNPR

D. MOQR

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Correct Answer: Option B

Explanation:
Each letter is shifted 3 places forward. J+3=M, L+3=O, N+3=Q, P+3=S, so JLNP becomes MOQS.

This question belongs to: Reasoning Mental Reasoning

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