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Question 821

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

P is the sister of Q. Q is the brother of S. T is the father of X. X is the son of S. How is X related to P?

  1. AOption (a)

    Sister's son

  2. BOption (b)

    Son

  3. COption (c)

    Daughter's son

  4. DOption (d)

    Brother's son

View answer & explanation

Correct answer

Answer: (a)A.

Sister's son

Why this answer is correct

The Family tree diagram,

Therefore, X is the son of S, and S is the sister of P. This makes X the Sister's son of P.

Hence, the correct answer is 'Option 1'.

Question 822

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

Seven boxes L, M, N, O, P, Q and R are kept one over the other but not necessarily in the same order. Box Q is kept immediately above N. Exactly two boxes are kept between L and N. L is kept on one of the positions above N. O is placed at the topmost position. Exactly two boxes are kept between M and P. Only one box is kept below P. R is kept on one of the positions below N. How many boxes are kept between Q and R?

  1. AOption (a)

    Two

  2. BOption (b)

    Three

  3. COption (c)

    None

  4. DOption (d)

    One

View answer & explanation

Correct answer

Answer: (a)A.

Two

Why this answer is correct

Given: Seven boxes L, M, N, O, P, Q and R are kept one over the other but not necessarily in the same order

  1. O is placed at the topmost position.
  2. Only one box is kept below P.
  3. Exactly two boxes are kept between M and P.
PositionBox
7O
6
5M
4
3
2P
1
  1. Exactly two boxes are kept between L and N, and L is kept on one of the positions above N.
  2. Q is kept immediately above N.
  3. R is kept on one of the positions below N.

Final Arrangement:

7O
6L
5M
4Q
3N
2P
1R

Thus, there are two boxes (N and P) kept between Q and R.

Hence, the correct answer is 'Option 1'.

Question 823

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

Select the triad that follows the same pattern as the one followed by the two triads given below. Both triads follow the same pattern.

FA - HC - JL

ID - KF - MO

  1. AOption (a)

    NH - OJ - QR

  2. BOption (b)

    MH - OJ - QR

  3. COption (c)

    NH - OI - QR

  4. DOption (d)

    MH - OJ - QS

View answer & explanation

Correct answer

Answer: (d)D.

MH - OJ - QS

Why this answer is correct

The logic followed in this pattern is,

For the triad 'FA - HC - JL':

For the triad 'ID - KF - MO':

Applying the same logic to 'MH - OJ - QS':

Thus, the triad MH - OJ - QS follows the same pattern as the given triads.

Hence, the correct answer is 'Option 4'.

Question 824

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

Select the triad which follows the same pattern as that followed by the two triads given below. Both triads follow the same pattern.

HM - JR - LW

UL - WQ - YV

  1. AOption (a)

    GP - EK - SV

  2. BOption (b)

    CF - EK - GP

  3. COption (c)

    CF- GK - HP

  4. DOption (d)

    GP - JK - CE

View answer & explanation

Correct answer

Answer: (b)B.

CF - EK - GP

Why this answer is correct

The logic follows here, 

For HM - JR - LW:

For UL - WQ - YV:

Applying the same logic  for CF - EK - GP:

Hence, the correct answer is " Option 2"

Question 825

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)

    BCDF

  2. BOption (b)

    UVWX

  3. COption (c)

    HIJL

  4. DOption (d)

    OPQS

View answer & explanation

Correct answer

Answer: (b)B.

UVWX

Why this answer is correct

The logic follows here, 

BCDF,

UVWX,

HIJL,

OPQS,

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

Hence, the correct answer is 'Option 2'.

Question 826

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)

    NQM

  2. BOption (b)

    YBX

  3. COption (c)

    JMI

  4. DOption (d)

    UYT

View answer & explanation

Correct answer

Answer: (d)D.

UYT

Why this answer is correct

The logic follows here, 

NQM,

YBX,

 JMI,

UYT

This letter cluster does not follow the rule.

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

Hence, the correct answer is 'Option 4'.

Question 827

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 two people sit to the right of T. Only two people sit between T and B. Only two people sit between A and Z. Z sits to the immediate left of T. O sits to the immediate right of D. Who sits immediately to the right of J?

  1. AOption (a)

    D

  2. BOption (b)

    Z

  3. COption (c)

    B

  4. DOption (d)

    J

View answer & explanation

Correct answer

Answer: (b)B.

Z

Why this answer is correct

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

  1. Only two people sit to the right of T.
  2. Only two people sit between T and B.
  3. Only two people sit between A and Z.
  4. Z sits to the immediate left of T.
  5. O sits to the immediate right of D

The final seating arrangement is:

 

From the table, we can see that Z sits immediately to the right of J.

Hence, the correct answer is "Option 2"

Question 828

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

What should come in place of the question mark (?) in the given series based on the English alphabetical order?

FJI JNM NRQ RVU ?

  1. AOption (a)

    VYX

  2. BOption (b)

    VZY

  3. COption (c)

    VAX

  4. DOption (d)

    VWY

View answer & explanation

Correct answer

Answer: (b)B.

VZY

Why this answer is correct

The logic follows here, 

 

By combining the obtained letters, the next term in the series is VZY.

Hence, the correct answer is "option 2"

Question 829

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

  1. AOption (a)

    RF – NC

  2. BOption (b)

    KP – GL

  3. COption (c)

    ME – IA

  4. DOption (d)

    ZW – VS

View answer & explanation

Correct answer

Answer: (a)A.

RF – NC

Why this answer is correct

The logic follows here, 

RF - NC,

 

KP - GL,

ME - IA,

ZW - VS,

Therefore, the letter-cluster pair that is different from the others is RF - NC.

Hence, the correct answer is 'Option 1'.

Question 830

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

How many such even numbers are there, each of which is immediately preceded by an odd number and also immediately followed by an even number?

  1. AOption (a)

    6

  2. BOption (b)

    4

  3. COption (c)

    5

  4. DOption (d)

    3

View answer & explanation

Correct answer

Answer: (b)B.

4

Why this answer is correct

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

Required Conditions: Odd Number → Even Number  → Even Number.

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

So, the total count of such even numbers is 7 4 8, 7 6 6 , 1 5 6 , 5 6 4: 4.

Hence, the correct answer is 'Option 2'.