RRB Group D · Topic Collection

Reasoning PYQs

Verbal and non-verbal reasoning, analogies, syllogisms, number series, coding-decoding, blood relations, and analytical puzzles.

4830 Total Questions161 Official PapersYears: 2018–2026Search in Reasoning
Showing questions 1521–1540 of 4830Page 77 of 100
RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1521

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

In the following triads, each group of letters is related to the subsequent one following a certain logic. Select from the given options, the one which follows the same logic.

HIVE - EHVI - HEIV

FANG - GFNA - FGAN

  1. AOption (a)

    SORT - TSOR - ORTS

  2. BOption (b)

     MUSK - KMSU - MKUS

  3. COption (c)

    TENS - ETNS - SENT 

  4. DOption (d)

    RAIN - NRIA - RANI

View answer & explanation

Correct answer

Answer: (b)B.

 MUSK - KMSU - MKUS

Why this answer is correct

Now,

HIVE - EHVI - HEIV

FANG - GFNA - FGAN

Let's check each Option One by One.

Option 1) SORT - TSOR - ORTS

SORT
1234
TSOR
4123
ORTS
2341

 

Option 2) MUSK - KMSU - MKUS

MUSK
1234
KMSU
4132
MKUS
1423

 

Option 3) TENS - ETNS - SENT 

TENS
1234
ETNS
2134
SENT
4231

 

Option 4) RAIN - NRIA - RANI

RAIN
1234
NRIA
4132
RANI
1243

So, Only MUSK - KMSU - MKUS follows the pattern of given letter cluster.

Hence, the correct answer is 'Option 2'.

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1522

RRB Group D 2025• 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 conclusion(s) logically follow(s) from the statements.

Statements:

Some birds are animals.

All animals are tables.

Conclusions:

(I): Some birds are tables.

(II): All tables are animals.

  1. AOption (a)

     Neither conclusion (I) nor (II) follows. 

  2. BOption (b)

    Only conclusion (I) follows. 

  3. COption (c)

    Both conclusions (I) and (II) follow

  4. DOption (d)

    Only conclusion (II) follows. 

View answer & explanation

Correct answer

Answer: (b)B.

Only conclusion (I) follows. 

Why this answer is correct

Given

Statements:

Some birds are animals.

All animals are tables.

The least possible Venn diagram for the given statement is:

Conclusions:

(I): Some birds are tables.

This follows directly from the combination of the two statements.

The portion of Birds that are Animals must also be Tables.

Therefore, Conclusion (I) logically follows.

(II): All tables are animals. 

Statement 2 ("All animals are tables") is an 'All A are B' statement.

This does not allow us to reverse the relationship to 'All B are A' (i.e., all tables are animals).

There could be tables that are not animals.

Therefore, Conclusion (II) does not follow.

So, Only conclusion (I) follows. 

Hence, the correct answer is "Option 2".

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1523

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster 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)

    LHK

  2. BOption (b)

    OKM

  3. COption (c)

    UQT

  4. DOption (d)

    RNQ

View answer & explanation

Correct answer

Answer: (b)B.

OKM

Why this answer is correct

ClusterPositions1st to 2nd Shift2nd to 3rd ShiftPattern
1) L H KL(12), H(8), K(11)8 - 12 = -411 - 8 = +3-4, +3
2) O K MO(15), K(11), M(13)11 - 15 = -413 - 11 = +2-4, +2
3) U Q TU(21), Q(17), T(20)17 - 21 = -420 - 17 = +3-4, +3
4) R N QR(18), N(14), Q(17)14 - 18 = -417 - 14 = +3-4, +3

The common pattern followed by LHK, UQT, and RNQ is a shift of -4, +3.

The cluster OKM follows a different pattern of -4, +2.

Therefore, the letter-cluster that does not belong to the group is OKM.

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1524

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

What should come in place of the question mark (?) in the given series? 36 51 45 64 54 77 63 90 72 ?

  1. AOption (a)

    110

  2. BOption (b)

    113

  3. COption (c)

    103

  4. DOption (d)

    106

View answer & explanation

Correct answer

Answer: (c)C.

103

Why this answer is correct

The logic followed here is:

Logic:

The question mark is the 10th term, which belongs to Series 2.

Next term = Last term of Series 2 + 13

Next term = 90 + 13 = 103

thus, "103" will replace the question mark in the given series.

Hence, the correct option is "Option 3".

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1525

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

Babar starts from Point A and drives 14 km towards West. He then takes a left turn, drives 7 km, turns right and drives 9 km. He then takes a right turn and drives 7 km. He takes a final right turn, drives 5 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° turns only unless specified.) 

  1. AOption (a)

    20 km towards West 

  2. BOption (b)

    18 km towards East 

  3. COption (c)

    18 km towards West

  4. DOption (d)

    20 km towards North

View answer & explanation

Correct answer

Answer: (b)B.

18 km towards East 

Why this answer is correct

Given: 

Babar starts from Point A and drives 14 km towards West.

He then takes a left turn, drives 7 km, turns right and drives 9 km.

He then takes a right turn and drives 7 km.

He takes a final right turn, drives 5 km and stops at Point P.

So, he should drive 18 km towards East in order to reach Point A again. 

Hence, the correct answer is "Option 2".

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1526

RRB Group D 2025• 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 letter-cluster pair 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)

    SO−ON

  2. BOption (b)

    AW−XT

  3. COption (c)

    PL−MI

  4. DOption (d)

    TP−QM

View answer & explanation

Correct answer

Answer: (a)A.

SO−ON

Why this answer is correct

The logic followed here is:

Option 1) SO−ON

Option 2) AW−XT

Option 3) PL−MI

Option 4) TP−QM

Here, 'SO−ON' is odd among the given options.

Hence, the correct answer is "Option 1".

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1527

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

What should come in place of the question mark (?) in the given series?

102 108 120 138 162 ?

  1. AOption (a)

    204

  2. BOption (b)

    212

  3. COption (c)

    230

  4. DOption (d)

    192

View answer & explanation

Correct answer

Answer: (d)D.

192

Why this answer is correct

The logic followed here is:

thus, "192" will replace the question mark in the given series.

Hence, the correct option is "Option 4".

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1528

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

Seven boxes F, G, H, I, K, L and O are kept one over the other but not necessarily in the same order.

O is kept second from the bottom.

Only three boxes are kept between O and G. L is kept at one of the positions below O. Only I is kept between G and H. F is kept at one of the positions above G.

How many boxes are kept between L and F?

  1. AOption (a)

    Three

  2. BOption (b)

    One

  3. COption (c)

    Four

  4. DOption (d)

    Five

View answer & explanation

Correct answer

Answer: (d)D.

Five

Why this answer is correct

Given: Seven boxes F, G, H, I, K, L and O are kept one over the other but not necessarily in the same order.

  1. O is kept second from the bottom.

2) Only three boxes are kept between O and G.

  1. L is kept at one of the positions below O.

4) Only I is kept between G and H.

5) F is kept at one of the positions above G.

F
G
I
H
O
L

 K will sit in the remaining position.

 

F
G
I
H
K
O
L

 

So, there are 'Five' boxes are kept between L and F.

Hence, the correct answer is "Option 4".

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1529

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

J, K, L, M, N, O and S are sitting around a circular table, facing the centre of the table.

Only three people sit between O and J when counted from the left of O. Only three people sit between K and M when counted from the right of M. S sits to the immediate right of K. N is an immediate neighbour of M as well as J. Who sits second to the left of L?

  1. AOption (a)

    N

  2. BOption (b)

    M

  3. COption (c)

    J

  4. DOption (d)

    O

View answer & explanation

Correct answer

Answer: (a)A.

N

Why this answer is correct

Given: J, K, L, M, N, O and S are sitting around a circular table, facing the centre of the table.

  1. Only three people sit between O and J when counted from the left of O.

  2. Only three people sit between K and M when counted from the right of M.

  3. S sits to the immediate right of K. 

  4. N is an immediate neighbour of M as well as J.

Here, N sits second to the left of L

Hence, the correct answer is "Option 1".

RRB NTPC (UG) CBT-I Official Paper (Held On: 08 Aug, 2025 Shift 3) (Previous Year Paper)·General Intelligence and Reasoning
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Question 1530

RRB Group D 2025• General Intelligence and Reasoning• General Intelligence and Reasoning

In the following number-pairs, the second number is obtained by applying certain mathematical operation(s) to the first number. Select the number-pair in which the numbers are related in the same way as are the numbers of the following pairs. (

NOTE:

Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding to/subtracting from/multiplying with 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

227, 112

240, 125

  1. AOption (a)

    210, 85

  2. BOption (b)

    254, 129

  3. COption (c)

    262, 147 

  4. DOption (d)

    215, 110 

View answer & explanation

Correct answer

Answer: (c)C.

262, 147 

Why this answer is correct

The logic followed here is:

Logic: Second Number = First Number - 115.

227, 112

⇒ 227 - 115  = 112

240, 125 

⇒ 240 - 115  = 125​

Now, checking the options:

Option 1) 210, 85

⇒ 210 - 115  ≠ 85

Option 2) 254, 129

⇒ 254 - 115  ≠ 129

Option 3) 262, 147 

⇒ 262 - 115  = 147

Option 4) 215, 110 

⇒ 215 - 115  ≠ 110

Hence, the correct option is "Option 3"

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1531

RRB Group D 2025• General Intelligence & Reasoning

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

Only L is kept above Q. Only three boxes are kept between L and R. Only O is kept below N. S is kept immediately above M. Which box is kept second above M?

  1. AOption (a)

    Q

  2. BOption (b)

    L

  3. COption (c)

    N

  4. DOption (d)

    O

View answer & explanation

Correct answer

Answer: (a)A.

Q

Why this answer is correct

Given:

→ Seven boxes L, M, N, O, Q, R and S are kept one above the other.

→ Only L is kept above Q.

→ Only three boxes are kept between L and R.

→ Only O is kept below N.

→ S is kept immediately above M.

Step 1: Arrange N and O

Only O is below N.

So, N must be at the bottom second position and O at the bottom.

Position (Top to Bottom)Box
1
2
3
4
5
6N
7O

 

Step 2: Place S and M

S is immediately above M.

Possible suitable positions:

PositionBox
1
2S
3M
4
5
6N
7O

 

Step 3: Place L and R

There are exactly three boxes between L and R.

So, possible positions are:

→ L at 1 and R at 5

PositionBox
1L
2S
3M
4
5R
6N
7O

 

Step 4: Place Q

Only L is above Q.

So Q must be immediately below L.

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

 

Step 5: Find the box second above M

M is at position 4.

First above M = S

Second above M = Q

Hence, the correct answer is "Option 1 - Q".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1532

RRB Group D 2025• General Intelligence & 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.

Statements:

All pilots are captains.

All captains are drivers.

Some drivers are teachers.

Conclusions

(I) All pilots are drivers.

(II) Some teachers are pilots.

  1. AOption (a)

    Only conclusion (II) follows.

  2. BOption (b)

    Neither conclusion (I) nor (II) follows.

  3. COption (c)

    Only conclusion (I) follows.

  4. DOption (d)

    Both conclusions (I) and (II) follow.

View answer & explanation

Correct answer

Answer: (c)C.

Only conclusion (I) follows.

Why this answer is correct

**Given

Statements:

**

All pilots are captains.

All captains are drivers.

Some drivers are teachers.

Venn Diagram Logic:

Conclusions:

(I) All pilots are drivers: Follows (Because all pilots are captains and all captains are drivers. Therefore, all pilots are drivers.)

(II) Some teachers are pilots: Does not follows (Because only “some drivers are teachers” is given. There is no definite relation between teachers and pilots.)

∴ Only conclusion (I) follows.

Hence, the correct answer is "Only conclusion (I) follows".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1533

RRB Group D 2025• General Intelligence & Reasoning

Seven friends, B, C, D, T, U, V and W, are sitting in a straight line facing north.

Only two people sit between V and D. Only U sits to the right of T. Only one person sits between D and T. C sits at some place to the right of B but at some place to the left of W. How many people sit between W and B?

  1. AOption (a)

    One

  2. BOption (b)

    Three

  3. COption (c)

    Four

  4. DOption (d)

    Two

View answer & explanation

Correct answer

Answer: (d)D.

Two

Why this answer is correct

Given:

→ Seven friends B, C, D, T, U, V and W are sitting in a straight line facing north.

→ Only two people sit between V and D.

→ Only U sits to the right of T.

→ Only one person sits between D and T.

→ C sits to the right of B but to the left of W.

B is at position 2.

W is at position 5.

People between them = C and D = 2 people

Hence, the correct answer is "Option 4 - Two".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1534

RRB Group D 2025• General Intelligence & Reasoning

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

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

How many such odd digits are there, each of which is immediately preceded by an odd digit and also immediately followed by an odd digit?

  1. AOption (a)

    None

  2. BOption (b)

    Three

  3. COption (c)

    One

  4. DOption (d)

    Two

View answer & explanation

Correct answer

Answer: (a)A.

None

Why this answer is correct

Given:

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

We need to find the odd digits which are:

→ Immediately preceded by an odd digit

→ Immediately followed by an odd digit

Required pattern: Odd digit → Odd digit → Odd digit

Checking the series:

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

No odd digit is both preceded and followed by an odd digit.

Therefore, there are no such odd digits.

Hence, the correct answer is "Option 1".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1535

RRB Group D 2025• General Intelligence & Reasoning

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

DER UVI LMZ CDQ ?

  1. AOption (a)

    THU

  2. BOption (b)

    HIT

  3. COption (c)

    TUH

  4. DOption (d)

    THI

View answer & explanation

Correct answer

Answer: (c)C.

TUH

Why this answer is correct

Given series: DER UVI LMZ CDQ ?

The pattern followed here is: 

∴ According to the pattern followed TUH will replace the (?) mark.

Hence, the correct answer is "Option 3".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1536

RRB Group D 2025• General Intelligence & Reasoning

Mr. Akte ranked 54th from the top and 19th from the bottom in his class. How many students are there in his class?

  1. AOption (a)

    68

  2. BOption (b)

    72

  3. COption (c)

    73

  4. DOption (d)

    70

View answer & explanation

Correct answer

Answer: (b)B.

72

Why this answer is correct

Given:

Mr. Akte ranked 54th from the top and 19th from the bottom.

Formula:

Total students = Rank from top + Rank from bottom − 1

Calculation:

= 54 + 19 − 1

= 73 − 1

= 72

Hence, the correct answer is "Option 2".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1537

RRB Group D 2025• General Intelligence & Reasoning

What will come in place of the question mark (?) in the following equation if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?

\( 33 - 15 \div 6 + 120 \times 8 = ? \)

  1. AOption (a)

    120

  2. BOption (b)

    108

  3. COption (c)

    112

  4. DOption (d)

    115

View answer & explanation

Correct answer

Answer: (b)B.

108

Why this answer is correct

Shortcut Trick

Interchange the signs as given: (− → +), (÷ → ×), (+ → −), (× → ÷).

Rewrite the expression: 33 + 15 × 6 − 120 ÷ 8.

Calculate division and multiplication: 120 ÷ 8 = 15 and 15 × 6 = 90.

Solve: 33 + 90 − 15 = 123 − 15 = 108.

∴ The correct answer is 108.

Alternate Method

Given:

Original equation: 33 − 15 ÷ 6 + 120 × 8

Interchanges: (+) ↔ (−) and (×) ↔ (÷)

Method:

Follow the BODMAS rule: Bracket, Of, Division, Multiplication, Addition, Subtraction.

Calculations:

⇒ New Equation: 33 + 15 × 6 − 120 ÷ 8

⇒ Step 1 (Division): 120 ÷ 8 = 15

⇒ Step 2 (Multiplication): 15 × 6 = 90

⇒ Step 3 (Addition): 33 + 90 = 123

⇒ Step 4 (Subtraction): 123 − 15

⇒ ? = 108

∴ The correct answer is 108.

Additional Information

BODMAS Rule

It defines the order of operations in arithmetic: Brackets → Orders (powers/roots) → Division → Multiplication → Addition → Subtraction.

Operator Interchange Logic

In these problems, replace every occurrence of the specified symbols simultaneously before starting any arithmetic calculation.

Priority of Division and Multiplication

Division and Multiplication hold the same rank and should be performed from left to right as they appear in the modified expression.

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1538

RRB Group D 2025• General Intelligence & Reasoning

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster 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)

    LGJ

  2. BOption (b)

    RMQ

  3. COption (c)

    PKN

  4. DOption (d)

    MHK

View answer & explanation

Correct answer

Answer: (b)B.

RMQ

Why this answer is correct

Logic followed here is:

The difference between the positional values of consecutive letters in the letter-cluster follows a specific pattern.

Option 1: LGJ

Option 2: RMQ

 

Option 3: PKN

 

Option 4: MHK

 

The pattern observed is: (1st letter - 5 = 2nd letter) and (2nd letter + 3 = 3rd letter). Letter-cluster 'RMQ' does not follow this pattern.

Therefore, the odd letter-cluster is 'RMQ'.

Hence, the correct answer is "Option 2".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1539

RRB Group D 2025• General Intelligence & Reasoning

XBYA is related to CGDF in a certain way based on the English alphabetical order. In the same way, ZDAC is related to EIFH. To which of the given options is BFCE related, following the same logic?

  1. AOption (a)

    GKHJ

  2. BOption (b)

    GLGK

  3. COption (c)

    GKGJ

  4. DOption (d)

    GJGJ

View answer & explanation

Correct answer

Answer: (a)A.

GKHJ

Why this answer is correct

Logic followed here is.

Logic: Each letter of the word is shifted forward by 5 positions in the English alphabetical order to obtain the corresponding letter of the related group.

For

XBYA is related to CGDF →

ZDAC is related to EIFH →

The pattern observed is: (Positional value of each letter + 5) = Positional value of the related letter.

Similarly, let's find the related word for BFCE:

Therefore, the related word for 'BFCE' is GKHJ.

Hence, the correct answer is "Option 1".

RRB Group D Official Paper (Held On: 22 Dec, 2025 Shift 2) (Previous Year Paper)·General Intelligence & Reasoning
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Question 1540

RRB Group D 2025• General Intelligence & Reasoning

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(

NOTE:

Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding to/subtracting from/multiplying with 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

\( (14, 14.4, 13.7) \)

\( (32, 32.4, 31.7) \)

  1. AOption (a)

    (25, 25.4, 24.7)

  2. BOption (b)

    (78, 78.4, 75.7)

  3. COption (c)

    (63, 63.4, 61.7)

  4. DOption (d)

    (46, 46.4, 44.7)

View answer & explanation

Correct answer

Answer: (a)A.

(25, 25.4, 24.7)

Why this answer is correct

Logic followed here is:

In each set, the second number is obtained by adding 0.4 to the first number, and the third number is obtained by subtracting 0.7 from the second number.

For

(14, 14.4, 13.7) →

1st2nd3rd
1414.413.7

Second number = 14 + 0.4 = 14.4

Third number = 14.4 - 0.7 = 13.7

 

(32, 32.4, 31.7) →

1st2nd3rd
3232.431.7

Second number = 32 + 0.4 = 32.4

Third number = 32.4 - 0.7 = 31.7

 

The pattern observed is: (1st Number + 0.4 = 2nd Number) and (2nd Number - 0.7 = 3rd Number).

Similarly, let's find the related set for (25, 25.4, 24.7):

1st2nd3rd
2525.424.7

Second number = 25 + 0.4 = 25.4

Third number = 25.4 - 0.7 = 24.7

Therefore, the set in which the numbers are related in the same way is (25, 25.4, 24.7).

Hence, the correct answer is "Option 1".

How should I prepare for Reasoning in RRB Group D?

Solving previous year questions by topic helps identify recurring concepts, question patterns, and frequently asked sub-topics. Attempt each question, review the step-by-step explanation, and note down key formulas or facts for quick revision before the exam.