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Question 1

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)

    LJ−HF

  2. BOption (b)

    EC−ZA

  3. COption (c)

    RP−NL

  4. DOption (d)

    OM−KI

View answer & explanation

Correct answer

Answer: (b)B.

EC−ZA

Why this answer is correct

The logic followed here is:

Option 1) LJ−HF

Option 2) EC−ZA

Option 3) RP−NL

Option 4) OM−KI

The letter-cluster that DOES NOT belong to the group is: EC−ZA.

Hence, the correct answer is "Option (2)"

Question 2

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

In a certain code language, ‘chest shirt coal’ is coded as 'ym aw xu' and ‘coal lake pig’ is coded as ‘aw yh ky’. How is ‘coal’ coded in the given language?

  1. AOption (a)

    xu

  2. BOption (b)

    aw

  3. COption (c)

    ym

  4. DOption (d)

    yh

View answer & explanation

Correct answer

Answer: (b)B.

aw

Why this answer is correct

The logic followed here is the comparison method of coding-decoding. By identifying common words in the given phrases, we can determine their corresponding codes.

Thus, the code for coal is aw.

Hence, the correct answer is "Option 2".

Question 3

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

KH 13 is related to ID 2 in a certain way. In the same way, LO 9 is related to JK −2. To which of the following is LJ 7 related, following the same logic?

  1. AOption (a)

    KF −4

  2. BOption (b)

    JF −4

  3. COption (c)

    JG −6

  4. DOption (d)

    KG −6

View answer & explanation

Correct answer

Answer: (b)B.

JF −4

Why this answer is correct

The logic followed here is:

For, KH 13 is related to ID 2

For,LO 9 is related to JK −2

Similarly, for  LJ 7 

So, LJ 7 will be related to JF -4.

Hence, the correct answer is 'Option 2'.

Question 4

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?

G 5, M 12, S 19, Y 26, ?

  1. AOption (a)

    J 33

  2. BOption (b)

    A 33

  3. COption (c)

    D 33

  4. DOption (d)

    E 33

View answer & explanation

Correct answer

Answer: (d)D.

E 33

Why this answer is correct

The logic follows here, 

  

Hence, the correct answer is “Option 4”.

Question 5

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

In a certain code language,

A + B means ‘A is the son of B’,

A – B means ‘A is the brother of B’,

A x B means ‘A is the wife of B’ and

A ÷ B means ‘A is the father of B’.

Based on the above, how is S related to K if ‘S + D ÷ F x H – K’?

  1. AOption (a)

    Wife's father

  2. BOption (b)

    Wife's brother

  3. COption (c)

    Brother's wife's brother

  4. DOption (d)

    Brother's wife's father

View answer & explanation

Correct answer

Answer: (c)C.

Brother's wife's brother

Why this answer is correct

Family Chart:

According to the information given in the question :

A is
Symbol+−×÷
MeaningSonBrotherWifeFather
of B

 

Given: S + D ÷ F × H − K

Family Tree Doagram will be :

Therefore, S is the brother of F, who is the wife of H, and H is the brother of K. This means S is the Brother's wife's brother of K.

Hence, the correct answer is 'Option 3'.

Question 6

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

R, E, A, D, I, N and G are sitting around a circular table, facing the centre of the table.

Only two people sit between N and R when counted from the left of R. G sits third to the left of A. D sits to the immediate right of A. D sits second to the left of N. I is not an immediate neighbor of G.

Who sits third to the right of E?

  1. AOption (a)

    R

  2. BOption (b)

    A

  3. COption (c)

    G

  4. DOption (d)

    D

View answer & explanation

Correct answer

Answer: (d)D.

D

Why this answer is correct

**Given:**R, E, A, D, I, N and G are sitting around a circular table, facing the centre of the table.

1) G sits third to the left of A

  1. D sits to the immediate right of A

  2. D sits second to the left of N

4) Only two people sit between N and R when counted from the left of R.

5) I is not an immediate neighbor of G.

The final Arrangement is, 

According to final arrangement D sits third to the right of E

 

Hence, "Option 4" is the correct answer.

Question 7

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?

MCK 10, PFN 13, SIQ 16, VLT 19, ?

  1. AOption (a)

    XOV 22

  2. BOption (b)

    YOW 22

  3. COption (c)

    XPW 24

  4. DOption (d)

    YPV 22

View answer & explanation

Correct answer

Answer: (b)B.

YOW 22

Why this answer is correct

The logic follows here,

So, 'YOW 22' will replace the question mark in the given series.

Hence, the correct answer is "Option 2"

Question 8

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

Each letter in the word LANGUID is arranged in the English alphabetical order. How many letters are there in the English alphabetical order between the letter which is second from the left and the one which is fourth from the right in the new letter cluster thus formed?

  1. AOption (a)

    4

  2. BOption (b)

    3

  3. COption (c)

    5

  4. DOption (d)

    7

View answer & explanation

Correct answer

Answer: (a)A.

4

Why this answer is correct

The logic followed here is:

Given :  L A N G U I D

Arranged in the English alphabetical order: A D G I L N U

Left  A D G I L N U  Right

Letters between D and I are E, F, G, and H.

Thus, there are 4 letters.

Hence, the correct answer is "Option 1".

Question 9

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

GECD is related to CAYZ in a certain way based on the English alphabetical order. In the same way, AYWX is related to WUST. To which of the following is USQR related, following the same logic?

  1. AOption (a)

    QNLN

  2. BOption (b)

    QOLN

  3. COption (c)

    QPLR

  4. DOption (d)

    QOMN

View answer & explanation

Correct answer

Answer: (d)D.

QOMN

Why this answer is correct

The logic follows here.

For 'GECD' related to 'CAYZ':

G(7)E(5)C(3)D(4)
−4 ↓−4 ↓−4 ↓−4 ↓
C(3)A(1)Y(25)Z(26)

For 'AYWX' related to 'WUST':

A(1)Y(25)W(23)X(24)
−4 ↓−4 ↓−4 ↓−4 ↓
W(23)U(21)S(19)T(20)

Similarly,  'USQR':

U(21)S(19)Q(17)R(18)
−4 ↓−4 ↓−4 ↓−4 ↓
Q(17)O(15)M(13)N(14)

Thus, USQR is related to QOMN.

Hence, the correct answer is 'Option 4'.

Question 10

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

Refer to the following series and answer the question. (Counting to be done from left to right only.) (all numbers are single digit numbers only.)

(Left) 9 2 3 1 4 5 6 8 5 4 3 2 1 9 3 4 5 6 7 8 1 2 9 8 3 4 5 2 6 8 2 (Right)

How many such even digits are there, each of which is immediately preceded by a perfect square and immediately followed by an odd digit? (NOTE: 1 is also a perfect square.)

  1. AOption (a)

    Two

  2. BOption (b)

    More than three

  3. COption (c)

    One

  4. DOption (d)

    Three

View answer & explanation

Correct answer

Answer: (b)B.

More than three

Why this answer is correct

Given series: (Left) 9 2 3 1 4 5 6 8 5 4 3 2 1 9 3 4 5 6 7 8 1 2 9 8 3 4 5 2 6 8 2 (Right)

According to the question:

Required condition: Perfect square -  Even Digit -  Odd digit

(Left) 9 2 3  1 4 5 6 8 5 4 3 2 1 9 3 4 5 6 7 8 1 2 9 8 3 4 5 2 6 8 2 (Right)

Thus, there are more than 3 numbers that are immediately preceded by a perfect square and immediately followed by an odd digit: 9 2 3, 1 4 5 , 1 2 9**,** 9 8 3.

Hence, "Option 2" is the correct answer.

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