Mental Reasoning MCQs with Answers for JKSSB, SSC & Railway

Question #161

A, B, C, D and E are five friends. A is shorter than B but taller than E. C is the tallest. D is shorter than B but taller than A. Who is the second tallest?

A. B

B. D

C. A

D. E

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Correct Answer: Option A

Explanation:
C tallest. Then B > D > A > E. So second tallest is B.

This question belongs to: Reasoning Mental Reasoning

Question #162

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If the numbers from 1 to 45 which are exactly divisible by 3 are arranged in ascending order, minimum number being on the top, which would come at the ninth place from the top?

A. 24

B. 18

C. 27

D. 21

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Correct Answer: Option C

Explanation:
Multiples of 3: 3,6,9,12,15,18,21,24,27,... Ninth is 27.

This question belongs to: Reasoning Mental Reasoning

Question #163

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Statements: All students are ambitious. Some ambitious are hardworking. Conclusions: I. Some hardworking are students. II. All hardworking are ambitious.

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 D

Explanation:
No definite relation between hardworking and students. All hardworking are ambitious does not follow. Neither follows.

This question belongs to: Reasoning Mental Reasoning

Question #164

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What should come next in the following letter series? A A B A B C A B C D A B C D E A B C D

A. B

B. C

C. A

D. E

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Correct Answer: Option D

Explanation:
The series is A, AB, ABC, ABCD, ABCDE, ABCDEF... So after A B C D the next group starts with A B C D E, so next letter is E.

This question belongs to: Reasoning Mental Reasoning

Question #165

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If in a certain code, '345' means 'you are good', '358' means 'good is nice' and '783' means 'nice and good', then which digit stands for 'is'?

A. 7

B. 3

C. 8

D. 5

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Correct Answer: Option C

Explanation:
From first two, good =3 or 5. From second and third, good =3 or 8. Common good =3. Then from second, remaining for 'is' and 'nice' are 5 and 8. From third, nice and and are 7 and 8 (since good=3). Common for nice is 8. Thus from second, 'is' =5. Wait, then answer B. From above: second 358 = good is nice, good=3, so is and nice =5,8. Third 783 = nice and good, good=3, so nice and =7,8. Thus nice =8, then is =5, and =7. Yes, 'is' =5.

This question belongs to: Reasoning Mental Reasoning

Question #166

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

A. Grandfather

B. Grandson

C. Great grandson

D. Great grandfather

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Correct Answer: Option D

Explanation:
D is father of C, C is mother of A and B, E is son of B. So D is great grandfather of E.

This question belongs to: Reasoning Mental Reasoning

Question #167

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Find the missing term in the series: 2, 3, 8, 27, 112, ?

A. 560

B. 555

C. 550

D. 565

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Correct Answer: Option D

Explanation:
Pattern: 2×1+1=3, 3×2+2=8, 8×3+3=27, 27×4+4=112, 112×5+5=565.

This question belongs to: Reasoning Mental Reasoning

Question #168

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In a certain code language, '123' means 'hot filtered coffee', '356' means 'very hot day' and '145' means 'coffee is hot'. Which digit stands for 'filtered'?

A. 5

B. 1

C. 2

D. 3

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Correct Answer: Option C

Explanation:
From first and third, hot and coffee common digits 1 and 3 or 5? 123 and 145 share 1. From first and second, hot =3. Thus from first, filtered =2 (coffee is the remaining 1).

This question belongs to: Reasoning Mental Reasoning

Question #169

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If the day after tomorrow is Sunday, what day was the day before yesterday?

A. Saturday

B. Thursday

C. Wednesday

D. Friday

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Correct Answer: Option C

Explanation:
Day after tomorrow = Sunday ⇒ Tomorrow = Saturday ⇒ Today = Friday. Day before yesterday = Wednesday.

This question belongs to: Reasoning Mental Reasoning

Question #170

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How many 3's are there in the following sequence which are preceded by 6 but not followed by 9? 6 3 9 6 3 5 6 3 9 6 3 2 6 3 9 6 3 4

A. 2

B. 1

C. 3

D. 4

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Correct Answer: Option C

Explanation:
Look for 6 3 x where x ≠9: 6 3 9 no, 6 3 5 yes, 6 3 9 no, 6 3 2 yes, 6 3 9 no, 6 3 4 yes. Three such.

This question belongs to: Reasoning Mental Reasoning

Question #171

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Statements: All men are women. All women are human. Conclusions: I. All men are human. II. Some human are women.

A. Neither follows

B. Only II follows

C. Only I follows

D. Both follow

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Correct Answer: Option D

Explanation:
All men are women and all women are human ⇒ All men are human. Some human are women follows. Both.

This question belongs to: Reasoning Mental Reasoning

Question #172

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A man walks 1 km towards East and then he turns to South and walks 5 km. Again he turns to East and walks 2 km. After this he turns to North and walks 9 km. Now, how far is he from his starting point?

A. 7 km

B. 5 km

C. 3 km

D. 4 km

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Correct Answer: Option B

Explanation:
East 1 + East 2 = 3 km East. South 5 then North 9 = 4 km North. Distance √(3²+4²)=5 km.

This question belongs to: Reasoning Mental Reasoning

Question #173

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Find the odd one out: 2, 5, 10, 17, 26, 37, 50, 64

A. 64

B. 50

C. 37

D. 26

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Correct Answer: Option A

Explanation:
Pattern +3,+5,+7,+9,+11,+13,+15. 50+15=65, but given 64 which is wrong. Hence 64 is odd.

This question belongs to: Reasoning Mental Reasoning

Question #174

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If in a certain language, 'MIRACLE' is coded as 'NCQBNMD', how is 'GROWTH' coded in that language?

A. HSPVUI

B. HQPVSI

C. HSPXUI

D. HSPVSI

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Correct Answer: Option C

Explanation:
Each letter +1: M→N, I→J but given N C Q... Not matching. Perhaps reverse and +1. MIRACLE reversed ELCARIM +1 → FMD BSJN not. Perhaps different. Standard +1 for each: but given NCQBNMD is M+1=N, I+1=J not C. Perhaps skip.

This question belongs to: Reasoning Mental Reasoning

Question #175

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Five friends P, Q, R, S and T are sitting in a row facing North. S is between T and Q. Q is between S and R. T is at the extreme left. Who is sitting at the extreme right?

A. S

B. R

C. P

D. Q

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Correct Answer: Option C

Explanation:
T at extreme left. S between T and Q ⇒ T S Q. Q between S and R ⇒ T S Q R. Remaining P at extreme right. Arrangement: T S Q R P.

This question belongs to: Reasoning Mental Reasoning

Question #176

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If 'A $ B' means A is the father of B; 'A # B' means A is the mother of B; 'A * B' means A is the sister of B, then in 'P $ Q # R * S', how is S related to P?

A. Daughter

B. Cannot be determined

C. Grandson

D. Granddaughter

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Correct Answer: Option B

Explanation:
P is father of Q. Q is mother of R. R is sister of S. So S is child of Q, grandchild of P, but gender of S not known. Cannot be determined.

This question belongs to: Reasoning Mental Reasoning

Question #177

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Complete the series: 7, 10, 16, 28, 52, ?

A. 90

B. 94

C. 100

D. 98

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Correct Answer: Option C

Explanation:
Pattern: ×2 −4: 7×2−4=10, 10×2−4=16, 16×2−4=28, 28×2−4=52, 52×2−4=100.

This question belongs to: Reasoning Mental Reasoning

Question #178

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A is the brother of B. B is the daughter of C. D is the father of A. How is C related to D?

A. Brother

B. Wife

C. Sister

D. Husband

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Correct Answer: Option B

Explanation:
D is father of A and B. C is parent of B (and A). Since D is father, C is mother, i.e., wife of D.

This question belongs to: Reasoning Mental Reasoning

Question #179

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

A. 2

B. 5

C. 8

D. 3

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Correct Answer: Option C

Explanation:
From first and third, good =5 or 6? 256 and 358 share 5. From second and third, bad =3 or 7 or 8 share 3. Thus good =5, bad =3. Then from third, and =8.

This question belongs to: Reasoning Mental Reasoning

Question #180

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Find the next term: 1, 2, 6, 24, 120, ?

A. 600

B. 840

C. 720

D. 620

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Correct Answer: Option C

Explanation:
1×2=2, 2×3=6, 6×4=24, 24×5=120, 120×6=720.

This question belongs to: Reasoning Mental Reasoning

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