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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'.

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"

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'.

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".

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)

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'.

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"

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"

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'.

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"

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