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Question 31

RRB Group D 2026• General Intelligence & Reasoning

Which two numbers should be interchanged to make the following equation correct?

(45 ÷ 9) + (2 × 3 × 5) ÷ 6 + 4 × 7 − 15 = 31

(

Note:

The entire number should be interchanged and not individual digits of a given number.)

  1. AOption (a)

    4 and 3

  2. BOption (b)

    9 and 15

  3. COption (c)

    4 and 2

  4. DOption (d)

    9 and 5

View answer & explanation

Correct answer

Answer: (d)D.

9 and 5

Why this answer is correct

BODMAS Table: 

Decoding the given information:

Interchanged Numbers95
New Position59

Now, replacing the numbers and using BODMAS Rule, we get:

⇒ (45 ÷ 5) + (2 × 3 × 9) ÷ 6 + 4 × 7 − 15 = 31

⇒ 9 + 9 + 28 − 15 = 31

⇒ 18 + 28 − 15 = 31

⇒ 46 − 15 = 31

⇒ 31 = 31

Hence, the correct option is "Option 4".

Question 32

RRB Group D 2026• General Intelligence & Reasoning

Pragya ranked 18th from the bottom and 14th from the top in her class. How many students are there in her class?

  1. AOption (a)

    28

  2. BOption (b)

    31

  3. COption (c)

    29

  4. DOption (d)

    30

View answer & explanation

Correct answer

Answer: (b)B.

31

Why this answer is correct

Given:

Rank from top = 14th

Rank from bottom = 18th.

Total number of students = 14 + 18 – 1 = 31.

So, there are 31 students in the class.

Hence, the correct answer is "Option 2".

Question 33

RRB Group D 2026• General Intelligence & Reasoning

SWYM is related to JNPD in a certain way based on the English alphabetical order. In the same way, IMOC is related to ZDFT. To which of the following options is HLNB related, following the same logic?

  1. AOption (a)

    YCES

  2. BOption (b)

    YESD

  3. COption (c)

    YCXZ

  4. DOption (d)

    YCDS

View answer & explanation

Correct answer

Answer: (a)A.

YCES

Why this answer is correct

The logic followed here is:

For, SWYM → JNPD

For, IMOC → ZDFT

Now, applying the same pattern to HLNB:

So, HLNB → YCES

Hence, the correct answer is Option 1.

Question 34

RRB Group D 2026• General Intelligence & Reasoning

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

GSN 14, EQL 23, COJ 32, AMH 41, ?9645

  1. AOption (a)

    ZKE 49

  2. BOption (b)

    YJD 50

  3. COption (c)

    YKF 50

  4. DOption (d)

    YKE 49

View answer & explanation

Correct answer

Answer: (c)C.

YKF 50

Why this answer is correct

The logic followed here is:

So, 'YKF 50' will replace the question mark in the given series.

Hence, the correct answer is "Option 3".

Question 35

RRB Group D 2026• General Intelligence & Reasoning

Mr. Trombitas starts from Point A and drives 26 km towards east. He then takes a right turn, drives 18 km, turns right and drives 34 km. He then takes a right turn and drives 39 km. He takes a final right turn, drives 8 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90-degree turns only, unless specified.)12

  1. AOption (a)

    21 km to the south

  2. BOption (b)

    24 km to the east

  3. COption (c)

    21 km to the north

  4. DOption (d)

    24 km to the west

View answer & explanation

Correct answer

Answer: (a)A.

21 km to the south

Why this answer is correct

The logic followed here is:

Given:

Mr. Trombitas drives 26 km East

He turns right → 18 km South

He turns right → 34 km West

He turns right → 39 km North

He turns right → 8 km East

So, To reach Point A, he must go 21 km South.

Hence, the correct answer is Option 1.

Question 36

RRB Group D 2026• General Intelligence & Reasoning

If ‘A’ stands for ‘÷’, ‘B’ stands for ‘x’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘-’, what will come in place of question mark ‘?’ in the following equation?

49 A 7 C 8 B 9 D 5 = ?

  1. AOption (a)

    74

  2. BOption (b)

    72

  3. COption (c)

    73

  4. DOption (d)

    71

View answer & explanation

Correct answer

Answer: (a)A.

74

Why this answer is correct

BODMAS Table: 

Decoding the given information:

AlphabetABCD
Meaning÷×+−

 

Now, replacing the sign from left to right using BODMAS Rule, we get:

⇒ 49 ÷ 7 + 8 × 9 − 5 = ?

⇒ 7 + 72 − 5 = ?

⇒ 79 − 5 = ?

⇒ 74

Hence, the correct option is "Option 1".

Question 37

RRB Group D 2026• General Intelligence & Reasoning

Refer to the following number, symbol series and answer the question that follows. Counting to be done from left to right only. (All numbers are single-digit numbers only.)

(Left) 3 6 @ 4 5 6 # 2 9 4 = 3 1 9 4 5 % 3 6 8 7 & 1 7 * 8 (Right)

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

  1. AOption (a)

    None

  2. BOption (b)

    One

  3. COption (c)

    Three

  4. DOption (d)

    Two

View answer & explanation

Correct answer

Answer: (b)B.

One

Why this answer is correct

Given: (Left) 3 6 @ 4 5 6 # 2 9 4 = 3 1 9 4 5 % 3 6 8 7 & 1 7 * 8 (Right)

Now,

We need to find symbols that are immediately preceded by an odd number and immediately followed by an even number.

So, Needed pattern is: Odd - Symbol - Even.

(Left) 3 6 @ 4 5 6 # 2 9 4 = 3 1 9 4 5 % 3 6 8 7 & 1 7 * 8 (Right)

Only one valid occurrence exists.

Hence, the correct answer is 'Option 2'.

Question 38

RRB Group D 2026• General Intelligence & Reasoning

In a certain code language,

A+ B means ‘A is the sister of B’

A # B means ‘A is the brother of B’

A × B means ‘A is the wife of B’

A @ B means ‘ A is the father of B’

Based on the above, how is L related to R if ‘L@O+V×E#R’?

  1. AOption (a)

    Brother's father

  2. BOption (b)

    Brother's wife's father

  3. COption (c)

    Brother's wife's brother

  4. DOption (d)

    Father's brother

View answer & explanation

Correct answer

Answer: (b)B.

Brother's wife's father

Why this answer is correct

Family Chart:

Decoding the Symbols:

Symbol+#×@
MeaningSisterBrotherWifeFather

Given: L @ O + V × E # R

It means: L is the father of O, O is the sister of V, V is the wife of E, and E is the brother of R.

Thus, L is R’s brother’s wife’s father.

Hence, the correct answer is "Option 2".

Question 39

RRB Group D 2026• General Intelligence & Reasoning

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

IJG 19 HIF 15 GHE 11 FGD 7 ?6928

  1. AOption (a)

    EEB 2

  2. BOption (b)

    EGB 3

  3. COption (c)

    EMV 2

  4. DOption (d)

    EFC 3

View answer & explanation

Correct answer

Answer: (d)D.

EFC 3

Why this answer is correct

The logic followed here is:

So, 'EFC 3' will replace the question mark in the given series.

Hence, the correct answer is "Option 4".

Question 40

RRB Group D 2026• General Intelligence & Reasoning

This question is based on the five, three-digit numbers given below.

(Left) 439 745 327 652 532 (Right)

(Example- 697 – First digit = 6, second digit = 9 and third digit = 7)

NOTE - All operations to be done from left to right.

If 2 is added to the first digit of every number, in how many numbers will the first digit be exactly divisible by the second digit?

  1. AOption (a)

    Two

  2. BOption (b)

    None

  3. COption (c)

    One

  4. DOption (d)

    Three

View answer & explanation

Correct answer

Answer: (c)C.

One

Why this answer is correct

The logic followed here is:

Given numbers: 439, 745, 327, 652, 532

Logic: Add 2 to the first digit of each number and check whether the resulting first digit is exactly divisible by the second digit of that number.

NumberFirst DigitSecond DigitNew First Digit ( +2 )Divisible by Second Digit?
4394366 ÷ 3 = 2
7457499 ÷ 4
3273255 ÷ 2
6526588 ÷ 5
5325377 ÷ 3

Valid number(s): 439

Hence, the correct answer is Option 3.

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