RRB NTPC · Topic Collection

Reasoning PYQs

Verbal and non-verbal reasoning, analogies, syllogisms, number series, coding-decoding, blood relations, and analytical puzzles.

1020 Total Questions34 Official PapersYears: 2016–2026Search in Reasoning
Showing questions 101–120 of 1020Page 6 of 51
RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 101

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Refer to the following series and answer the question (all numbers are single digit numbers only).

(Left) 45623332112387464658256543423(Right)

How many such odd digits are there each of which is immediately preceded by an even digit and also immediately followed by an odd digit?

  1. AOption (a)

    NONE

  2. BOption (b)

    TWO

  3. COption (c)

    FIVE

  4. DOption (d)

    ONE

View answer & explanation

Correct answer

Answer: (b)B.

TWO

Why this answer is correct

Given series: 4 5 6 2 3 3 3 2 1 1 2 3 8 7 4 6 4 6 5 8 2 5 6 5 4 3 4 2 3 

Required Condition: Even Digit - Odd Digit  - Odd Digit

(Left) 4 5 6 2 3 3 3 2 1 1 2 3 8 7 4 6 4 6 5 8 2 5 6 5 4 3 4 2 3 (Right)

Thus, there are exactly two such odd digits that satisfy the given conditions: 2 3 3 , 2 1 1

Hence, the correct answer is 'Option 2'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 102

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Seven people A, B, D, J, O, T and Z are sitting in a row, facing north. Only one person sits to the right of A. Only three people sit between B and A. Only three people sit between T and J, neither of whom sits on the left end. D sits immediately to the right of Z. Only one person sits between T and O. Who sits immediately to the left of A?

  1. AOption (a)

    D

  2. BOption (b)

    J

  3. COption (c)

    B

  4. DOption (d)

    T

View answer & explanation

Correct answer

Answer: (a)A.

D

Why this answer is correct

Given: Seven people, A, B, D, J, O, T, and Z, are sitting in a row, facing north.

  • Only one person sits to the right of A.
  • Only three people sit between B and A.
  • Only three people sit between T and J, neither of whom sits on the left end.
  • D sits immediately to the right of Z.
  • Only one person sits between T and O.

The Final Arrangement is,

From the arrangement, we can see that D sits immediately to the left of A.

Hence, the correct answer is "Option 1"

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 103

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Each of the digits in the number 84157639 is arranged in ascending order from left to right. The position of how many digits will remain unchanged as compared to that in the original number?

  1. AOption (a)

    Three

  2. BOption (b)

    One

  3. COption (c)

    Two

  4. DOption (d)

    None

View answer & explanation

Correct answer

Answer: (c)C.

Two

Why this answer is correct

Given number: 84157639

When the digits of the given number are arranged in ascending order from left to right, we get the following sequence:

Original number: 8 4 1 5 7 6 3 9

Ascending order: 1 3 4 5 6 7 8 9

Therefore, the positions of two digits remain unchanged.

 

Hence, the correct answer is 'Option 3'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 104

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statement(s).

Statements:

All huts are villages.

No hut is a district.

Conclusions:

(I) No village is a district.

(II) Some districts are huts.

  1. AOption (a)

    Both conclusions (I) and (II) follow

  2. BOption (b)

    Neither conclusion (I) nor (II) follows

  3. COption (c)

    Only conclusion (I) follows

  4. DOption (d)

    Only conclusion (II) follows

View answer & explanation

Correct answer

Answer: (b)B.

Neither conclusion (I) nor (II) follows

Why this answer is correct

The least possible Venn diagram for the given statements is:

Conclusions:

(I) No village is a district - Does not follow (No direct relation between village and district. Hence, it is false)

(II) Some districts are huts - Does not follow (No direct relation between huts and district. Hence, it is false)

Neither conclusion (I) nor (II) follows.

Hence, the correct answer is "Option 2".

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 105

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

If 2 is added to each odd digit and 1 is subtracted from each even digit in the number 82135746, then what will be the difference between the first digit from the right end and the first digit from the left end in the new number thus formed?

  1. AOption (a)

    8

  2. BOption (b)

    2

  3. COption (c)

    6

  4. DOption (d)

    4

View answer & explanation

Correct answer

Answer: (b)B.

2

Why this answer is correct

According to the given information:

When 2 is added to each odd digit and 1 is subtracted from each even digit in the number 82135746

Now the new number is: Left   7 1 3 5 7 9 3 5  Right

The difference between the first digit from the right end and the first digit from the left end in the new number = 7 - 5 = 2.

Hence the correct answer is Option 2)

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 106

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Based on the alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that does not belong to that group?

(Note: The odd man out is not based on the number of consonants/vowels or their position in the letter cluster.)

  1. AOption (a)

    DAY

  2. BOption (b)

    PNK

  3. COption (c)

    OLJ

  4. DOption (d)

    NKI

View answer & explanation

Correct answer

Answer: (b)B.

PNK

Why this answer is correct

The logic followed here is,

Logic: 1st Letter − 3 = 2nd Letter; 2nd Letter − 2 = 3rd Letter.

DAY

 

PNK

 

OLJ

NKI

Therefore, the letter cluster that is different from the others is PNK.

Hence, the correct answer is 'Option 2'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 107

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

What should come in place of ‘?’ in the given series?

8 9 17 26 90 115 ?

  1. AOption (a)

    198

  2. BOption (b)

    313

  3. COption (c)

    331

  4. DOption (d)

    231

View answer & explanation

Correct answer

Answer: (c)C.

331

Why this answer is correct

The logic followed here is:

8 + 12 = 8 + 1 = 9

9 + 23 = 9 + 8 = 17

17 + 32 = 17 + 9 = 26

26 + 43 = 26 + 64 = 90

90 + 52 = 90 + 25 = 115

115 + 63 = 115 + 216 = 331

Hence, the correct answer is "Option 3"

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 108

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statement(s).

Statements:

All jokers are frogs.

All frogs are cars.

Conclusions:

(I) Some cars are frogs.

(II) All jokers are cars.

  1. AOption (a)

    Only conclusion (I) follows

  2. BOption (b)

    Only conclusion (II) follows

  3. COption (c)

    Neither conclusion (I) nor (II) follows

  4. DOption (d)

    Both conclusions (I) and (II) follow

View answer & explanation

Correct answer

Answer: (d)D.

Both conclusions (I) and (II) follow

Why this answer is correct

​The least possible Venn diagram for the given statements is:

Conclusion

(I) Some cars are frogs - Follows ( All frogs are car that means some frogs are car and some cars are frogs)

(II) All jokers are cars - Follows (All jokers are car that means some jokers are car and some cars are jokers)

Both conclusions (I) and (II) follow.

Hence the correct answer is "Option 4"

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 109

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

18, 109

17, 103

  1. AOption (a)

    22, 133

  2. BOption (b)

    19, 116

  3. COption (c)

    24, 155

  4. DOption (d)

    26, 130

View answer & explanation

Correct answer

Answer: (a)A.

22, 133

Why this answer is correct

The logic followed here is:

Logic: Second Number = (First Number × 6) + 1

For the first set 18, 109

⇒ (18 × 6) + 1

⇒ 108 + 1 = 109

For the second set 17, 103

⇒ (17 × 6) + 1

⇒ 102 + 1 = 103

Applying the same logic to the options

 22, 133

⇒ (22 × 6) + 1

⇒ 132 + 1 = 133

Hence, the correct answer is 'Option 1'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 110

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Seven people, Q, M, B, L, E, F and G, are sitting in a row, facing north.

Only six people sit to the right of E. Only five people sit to the left of Q. Only three people sit between M and Q. B is the immediate neighbour of L and G. Only three people sit between F and L.

How many people sit between G and F?

  1. AOption (a)

    One

  2. BOption (b)

    Four

  3. COption (c)

    Two

  4. DOption (d)

    Three

View answer & explanation

Correct answer

Answer: (a)A.

One

Why this answer is correct

Given: Seven people, Q, M, B, L, E, F, and G, are sitting in a row, facing north.

  1. Only six people sit to the right of E
  2. Only five people sit to the left of Q
  3. Only three people sit between M and Q
  4. B is the immediate neighbour of L and G
  5. Only three people sit between F and L

Final Seating Arrangement:

Therefore, one person sits between G and F.

Hence, the correct answer is "Option 1"

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 111

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Ayush ranked 44th from the top and 25th from the bottom in his class. How many students are there in his class?

  1. AOption (a)

    66

  2. BOption (b)

    68

  3. COption (c)

    69

  4. DOption (d)

    67

View answer & explanation

Correct answer

Answer: (b)B.

68

Why this answer is correct

The logic followed here is:

Rank of Ayush from the top = 44th

Rank of Ayush from the bottom = 25th

Total number of students = (Rank from the top + Rank from the bottom) − 1

= (44 + 25) − 1

= 69 − 1

= 68

Hence, the correct answer is 'Option 2'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 112

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

X is the mother of F. F is the sister of T. U is the father of K. K is the husband of T. How is X related to U?

  1. AOption (a)

    Mother

  2. BOption (b)

    Son's wife's mother

  3. COption (c)

    Son's wife's sister

  4. DOption (d)

    Daughter

View answer & explanation

Correct answer

Answer: (b)B.

Son's wife's mother

Why this answer is correct

The family tree diagram is , 

Based on the tree, K is the son of U and T is K's wife. Since X is the mother of T, X is the mother of U's son's wife.

Hence, the correct answer is 'Option 2'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 113

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

What should come in place of '?' in the given series based on the English alphabetical order?

GJE ZCX SVQ LOJ ?

  1. AOption (a)

    LNJ

  2. BOption (b)

    PRN

  3. COption (c)

    EHC

  4. DOption (d)

    BFU

View answer & explanation

Correct answer

Answer: (c)C.

EHC

Why this answer is correct

The logic followed here is:

The term is EHC.

Hence, the correct answer is "Option 3"

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 114

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Which of the following options should come in place of the ‘?’ in the given series based on the English alphabetical order?

N 32, I 25, D 18, Y 11, ?

  1. AOption (a)

    S 4

  2. BOption (b)

    T 4

  3. COption (c)

    Z 4

  4. DOption (d)

    Y 4

View answer & explanation

Correct answer

Answer: (b)B.

T 4

Why this answer is correct

The logic followed here is:

 

The missing term in the series is T 4.

Hence, the correct answer is "Option 2"

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 115

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

KY 1 is related to MU 17 in a certain way. In the same way, FI 8 is related to HE 24. To which of the following is RF 3 related, following the same logic?

  1. AOption (a)

    YG 9

  2. BOption (b)

    KL 5

  3. COption (c)

    TB 19

  4. DOption (d)

    KJ 7

View answer & explanation

Correct answer

Answer: (c)C.

TB 19

Why this answer is correct

The logic follows here, 

For KY 1 is related to MU 17,

For  FI 8 is related to HE 24,

Applying same logic, RF 3 related to

Thus, RF 3 is related to TB 19.

Hence, the correct answer is 'Option 3'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 116

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 51748623, then how many digits will appear more than once in the new number thus formed?

  1. AOption (a)

    Two

  2. BOption (b)

    Four

  3. COption (c)

    One

  4. DOption (d)

    Three

View answer & explanation

Correct answer

Answer: (d)D.

Three

Why this answer is correct

Given number: 51748623

1 is added to each odd digit and 2 is subtracted from each even digit in the number 51748623

Digits will appear more than once in the new number, thus three are formed: 2, 6, and 4.

Hence, the correct answer is 'Option 4'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 117

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

In a certain code language, ‘COAL’ is coded as ‘7649’ and ‘ALSO’ is coded as ‘5967’. What is the code for ‘S’ in the given code language?

  1. AOption (a)

    7

  2. BOption (b)

    6

  3. COption (c)

    9

  4. DOption (d)

    5

View answer & explanation

Correct answer

Answer: (d)D.

5

Why this answer is correct

The logic followed here is the comparison of letters and their corresponding numerical codes in the given words.

Therefore, the code for S is 5.

Hence, the correct answer is "Option 4"

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 118

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Tuv ranked 27th from the top and 64th from the bottom in his class. How many students are there in his class?

  1. AOption (a)

    90

  2. BOption (b)

    89

  3. COption (c)

    92

  4. DOption (d)

    91

View answer & explanation

Correct answer

Answer: (a)A.

90

Why this answer is correct

The logic followed here is:

Position of Tuv from the top = 27th

Position of Tuv from the bottom = 64th

Total number of students in the class = (Position from the top + Position from the bottom) − 1

= (27 + 64) − 1

= 91 − 1

= 90

Hence, the correct answer is 'Option 1'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 119

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which is the one that does not belong to that group?

(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

  1. AOption (a)

    HL - NR

  2. BOption (b)

    DH - JN

  3. COption (c)

    KO - QV

  4. DOption (d)

    AE - GK

View answer & explanation

Correct answer

Answer: (c)C.

KO - QV

Why this answer is correct

The logic followed here is

HL − NR,

DH − JN,

KO − QV

AE − GK,

Therefore, the letter-cluster pair that is different from the others is KO − QV.

Hence, the correct answer is 'Option 3'.

RRB NTPC (UG) CBT-I Official Paper (Held On 08 May, 2026 Shift 1) (Previous Year Paper)·General Intelligence and Reasoning
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Question 120

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Each vowel in the word REFERTILIZES is changed to the second letter immediately following it in the English alphabetical order, and each consonant is changed to the second letter immediately preceding it in the English alphabetical order. Which of the following letters will appear exactly twice in the group of letters thus formed?

  1. AOption (a)

    X

  2. BOption (b)

    G

  3. COption (c)

    K

  4. DOption (d)

    R

View answer & explanation

Correct answer

Answer: (c)C.

K

Why this answer is correct

The logic followed here is:

For the word REFERTILIZES:

Original LetterREFERTILIZES
New LetterPGDGPRKJKXGQ

The letters that appear exactly twice in the formed group are P and K.

Comparing this with the given options, K is in the options that appear exactly twice.

Hence, the correct answer is "Option 3"

How should I prepare for Reasoning in RRB NTPC?

Solving previous year questions by topic helps identify recurring concepts, question patterns, and frequently asked sub-topics. Attempt each question, review the step-by-step explanation, and note down key formulas or facts for quick revision before the exam.