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Question 461

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 wife of B’,

A + B means ‘A is the brother of B’ and

A & B means ‘A is the father of B’.

How is S related to H if ‘S ÷ D & R # Y + H’?

  1. AOption (a)

    Brother's wife's brother

  2. BOption (b)

    Wife's brother

  3. COption (c)

    Brother's brother

  4. DOption (d)

    Brother's wife's father

View answer & explanation

Correct answer

Answer: (a)A.

Brother's wife's brother

Why this answer is correct

Preparing the family tree diagram by using the following symbols:

Let us first decode the given symbols and then draw a family tree.

Symbol÷#+&
MeaningSonWifeBrotherFather

 

Given expression: S ÷ D & R # Y + H’

Based on the family tree, S is the brother of R, R is the wife of Y, and Y is the brother of H. Thus, S is the brother of H's brother's wife.

Therefore, S is the Brother's wife's brother of H.

Hence, the correct answer is 'Option 1'.

Question 462

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?

MAI PEN SIS VMX ?

  1. AOption (a)

    ZRC

  2. BOption (b)

    YQC

  3. COption (c)

    APD

  4. DOption (d)

    ZRD

View answer & explanation

Correct answer

Answer: (b)B.

YQC

Why this answer is correct

The logic follows here, 

Hence, the correct answer is "option 2"

Question 463

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

If + means -, - means ×, × means ÷, and ÷ means +, then what will come in place of the question mark (?) in the following equation?

38 - 25 ÷ 133 + 703 × 19 = ?

  1. AOption (a)

    1052

  2. BOption (b)

    1156

  3. COption (c)

    1046

  4. DOption (d)

    1191

View answer & explanation

Correct answer

Answer: (c)C.

1046

Why this answer is correct

BODMAS Table:

Sign Conversion:

−÷ (div)+× (times)
×+−÷

 

Given:  38 − 25 ÷ 133 + 703 × 19

After replacing the symbols with their meaning and following BODMAS rule, we get.

= 38 × 25 + 133 − 703 ÷ 19

= 38 × 25 + 133 − 37

= 950 + 133 − 37

= 1083 − 37

= 1046

Hence, the correct answer is "option 3"

Question 464

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

The position(s) of how many letters will remain unchanged if each letter in the word COMBINE is arranged in the English alphabetical order?

  1. AOption (a)

    2

  2. BOption (b)

    0

  3. COption (c)

    1

  4. DOption (d)

    3

View answer & explanation

Correct answer

Answer: (c)C.

1

Why this answer is correct

Given word**: COMBINE:**

OriginalCOMBINE
| Alphabetical order | | --- |Alphabetical orderBCEIMNO
Alphabetical order

Only the letter N remains in its original 6th position after the letters are arranged in alphabetical order.

The number of letters whose position remains unchanged is 1.

Hence, the correct answer is "option 3"

Question 465

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

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

486 441 401 366 336 ?

  1. AOption (a)

    311

  2. BOption (b)

    312

  3. COption (c)

    313

  4. DOption (d)

    310

View answer & explanation

Correct answer

Answer: (a)A.

311

Why this answer is correct

The logic followed here is,

  • 486 − 45 = 441
  • 441 − 40 = 401
  • 401 − 35 = 366
  • 366 − 30 = 336
  • 336 − 25 = 311

 

Thus, the missing term in the series is 311.

Hence, the correct answer is 'Option 1';

Question 466

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

All 195 people are standing in a row facing north. Rt is 143rd from the left end while Kl is 36th from the right end. How many people are there between Rt and Kl?

  1. AOption (a)

    12

  2. BOption (b)

    13

  3. COption (c)

    16

  4. DOption (d)

    14

View answer & explanation

Correct answer

Answer: (c)C.

16

Why this answer is correct

The logic followed here is:

Total number of people in the row = 195

Position of Rt from the left end = 143rd

Position of Kl from the right end = 36th

To find the number of people between them, we first determine the position of Kl from the left end.

Position of Kl from the left end = (Total number of people − Position of Kl from the right end) + 1

= (195 − 36) + 1

= 159 + 1

= 160th

Now, the number of people between Rt and Kl = (Position of Kl from the left end − Position of Rt from the left end) − 1

= (160 − 143) − 1

= 17 − 1

= 16

Hence, the correct answer is "Option 3".

Question 467

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

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

  1. AOption (a)

    Q

  2. BOption (b)

    W

  3. COption (c)

    K

  4. DOption (d)

    M

View answer & explanation

Correct answer

Answer: (a)A.

Q

Why this answer is correct

Given word:  VOLUNTARY

Applying the logic to the word VOLUNTARY:

Original LetterVOLUNTARY
New LetterUQKWMSCQX

The letters formed after the transformation are: U, Q, K, W, M, S, C, Q, X.

The letter Q appears exactly twice in the group.

Hence, the correct answer is "option 1"

Question 468

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 kings are buttons. No pants are kings.

Conclusion (I): All buttons are kings.

Conclusion (II): Some buttons are not pants.

  1. AOption (a)

    Neither conclusion (I) nor (II) follows

  2. BOption (b)

    Only conclusion (II) follows

  3. COption (c)

    Only conclusion (I) follows

  4. DOption (d)

    Both conclusions (I) and (II) follow

View answer & explanation

Correct answer

Answer: (b)B.

Only conclusion (II) follows

Why this answer is correct

The least possible Venn diagram for the given statements is:

(I) All buttons are kings - Doesn't follow (All kings are buttons and All buttons are kings is may be possible but not definite.Hence, it is false)

(II) Some buttons are not pants - Follow (all kings are buttons and no kings are pants, the part of buttons that consists of kings can never be pants.)

Only conclusion (II) follows

Hence, the correct answer is " Option 2"

Question 469

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. Only one box is kept between R and O. R is kept on one of the positions above O. Box N is kept immediately below L. Q is placed at the topmost position. Exactly three boxes are kept between P and M. P is kept on one of the positions above M. Box M is kept immediately above O. Which box is kept fourth from the top?

  1. AOption (a)

    N

  2. BOption (b)

    L

  3. COption (c)

    M

  4. DOption (d)

    P

View answer & explanation

Correct answer

Answer: (a)A.

N

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

Final Arrangement:

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

Thus, the box kept fourth from the top is N.

Hence, the correct answer is 'Option 1'.

Question 470

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

A, B, C, D, S, T and U are sitting around a circular table, facing the centre of the table. Only three people sit between B and C, when counted from the left of B. Only three people sit between U and T, when counted from the right of T. D sits to the immediate right of U. A is an immediate neighbor of T as well as C. Who sits second to the left of S?

  1. AOption (a)

    U

  2. BOption (b)

    A

  3. COption (c)

    C

  4. DOption (d)

    T

View answer & explanation

Correct answer

Answer: (b)B.

A

Why this answer is correct

Given : A, B, C, D, S, T and U are sitting around a circular table, facing the centre of the table.

  1. Only three people sit between B and C, when counted from the left of B.
  2. Only three people sit between U and T, when counted from the right of T.
  3. D sits to the immediate right of U.
  4. A is an immediate neighbor of T as well as C

 

The Final Arrangement is, 

 Therefore, A sits second to the left of S.

Hence, the correct answer is 'Option 2'.