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Question 661

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

Refer to the following letter series and answer the question that follows. Counting to be done from left to right only.

(Left) U N E H W Y B X P E L Q R C G R U A Z R U (Right)

How many such vowels are there, each of which is immediately preceded by a vowel and also immediately followed by a consonant?

  1. AOption (a)

    None

  2. BOption (b)

    Two

  3. COption (c)

    One

  4. DOption (d)

    Three

View answer & explanation

Correct answer

Answer: (c)C.

One

Why this answer is correct

Given: U N E H W Y B X P E L Q R C G R U A Z R U

Required Condition: Vowel → Vowel → Consonant

(Left) U N E H W Y B X P E L Q R C G R U A Z R U (Right).

There is only One such vowel in the series that satisfies the given condition: U A Z 

Hence, the correct answer is "Option 3"

Question 662

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

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

RTR 77 NPN 72 JLJ 67 FHF 62 ?

  1. AOption (a)

    BDB 57

  2. BOption (b)

    BFK 56

  3. COption (c)

    BEA 57

  4. DOption (d)

    BCA 56

View answer & explanation

Correct answer

Answer: (a)A.

BDB 57

Why this answer is correct

The logic follows here, 

Combining both parts, the next cluster in the series is BDB 57.

Hence, the correct answer is "option 1"

Question 663

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

In a certain code language, ‘SAFE’ is coded as ‘3698’ and ‘FACE’ is coded as ‘5398’.

What is the code for ‘S’ in the given code language?

  1. AOption (a)

    9

  2. BOption (b)

    6

  3. COption (c)

    8

  4. DOption (d)

    3

View answer & explanation

Correct answer

Answer: (b)B.

6

Why this answer is correct

The logic follows here, 

Thus, the code for S is 6.

Hence, the correct answer is "option 2"

Question 664

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

SF 19 is related to VA 6 in a certain way. In the same way, GG 16 is related to JB 3. To which of the following is KL 2 related, following the same logic?

  1. AOption (a)

    HY −9

  2. BOption (b)

    NG −11

  3. COption (c)

    JI −12

  4. DOption (d)

    KL −10

View answer & explanation

Correct answer

Answer: (b)B.

NG −11

Why this answer is correct

The logic follows here, 

SF 19 is related to VA 6,

 GG 16 is related to JB 3,

Applying to the same logic KL 2 related to, 

Hence, KL 2 is related to NG − 11 following the same logic.

Hence, the correct answer is 'Option 2'.

Question 665

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

Based on the English 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)

    QOM

  2. BOption (b)

    MKI

  3. COption (c)

    CBY

  4. DOption (d)

    BZX

View answer & explanation

Correct answer

Answer: (c)C.

CBY

Why this answer is correct

The logic follows here, 

QOM,

 

MKI,

 

CBY,

BZX,

 

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

Hence, the correct answer is "Option 3"

Question 666

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: Some phones are irons. Some irons are vaults.

Conclusions (I) : No iron is a phone.

Conclusions (II) : Some phones are vaults.

  1. AOption (a)

    Only conclusion (II) follows

  2. BOption (b)

    Both conclusions (I) and (II) follow

  3. COption (c)

    Neither conclusion (I) nor (II) follows

  4. DOption (d)

    Only conclusion (I) follows

View answer & explanation

Correct answer

Answer: (c)C.

Neither conclusion (I) nor (II) follows

Why this answer is correct

The least possible Venn diagram for the given statements is:

(I) No iron is a phone - Doesn't follow (Some iron is a phones and some phones is a iron)

(II) Some phones are vaults - Doesn't follow (Their is no direct relation between phones and vaults may be it is possible but not definite. Hence, it is false)

Neither conclusion (I) nor (II) follows.

Hence, the correct answer is "Option 3."

Question 667

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

Seven people, U, T, E, N, S, I and L, are sitting in a row, facing the north.

Only two people sit to the left of N. Only three people sit between N and S. Only one person sits between S and E. I sits to the immediate left of L. U is not an immediate neighbor of S.

How many people sit to the right of T?

  1. AOption (a)

    Four

  2. BOption (b)

    Two

  3. COption (c)

    Three

  4. DOption (d)

    One

View answer & explanation

Correct answer

Answer: (d)D.

One

Why this answer is correct

Given: Seven people, U, T, E, N, S, I, and L, are sitting in a row, facing the north.

  1. Only two people sit to the left of N.
  2. Only three people sit between N and S.
  3. Only one person sits between S and E.
  4. I sits to the immediate left of L.
  5. U is not an immediate neighbor of S

The Final Arrangement is ,

Therefore, only one person sits to the right of T.

Hence, the correct answer is " Option 4"

Question 668

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

Read the given statements 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 statements.

Statement: All Cobalt is Silver. No Silver is Vanadium.

Conclusion I: No Vanadium is Cobalt.

Conclusion II: Some Vanadium is Cobalt.

  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: (c)C.

Only conclusion (I) follows

Why this answer is correct

The least possible Venn diagram for the given statements is:

(I) No Vanadium is Cobalt - Follows

(Their is no direct relation between cobalt and vanadium may be it is possible but not definite. Hence, it is false)

(II) Some Vanadium is Cobalt - Doesn't follow

(Their is no direct relation between cobalt and vanadium may be it is possible but not definite. Hence, it is false)

Only conclusion (I) follows.

Hence, the correct answer is " Option 3"

Question 669

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)

    XUY

  2. BOption (b)

    NKO

  3. COption (c)

    LJM

  4. DOption (d)

    ROS

View answer & explanation

Correct answer

Answer: (c)C.

LJM

Why this answer is correct

The logic followed here is,

Logic: Second letter = First letter − 3; Third letter = First letter + 1.

For XUY,

 

For NKO,

 

For ROS,

 

For LJM,

 

This letter cluster does not follow the rule.

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

Hence, the correct answer is 'Option 3'.

Question 670

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

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

10 19 36 58 88 123 ?

  1. AOption (a)

    166

  2. BOption (b)

    175

  3. COption (c)

    169

  4. DOption (d)

    171

View answer & explanation

Correct answer

Answer: (a)A.

166

Why this answer is correct

The pattern is as follows:

  • 10 + 9 = 19
  • 19 + 17 = 36
  • 36 + 22 = 58
  • 58 + 30 = 88
  • 88 + 35 = 123
  • 123 + 43 = 166

Thus, the missing term in the series is 166.

Hence, the correct answer is 'Option 1';