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Question 11

RRB Group D 2026• General Intelligence & Reasoning

Refer to the following letter series and answer the question.

(Left) C X Z A L P W T M D B R O J K F G V Q H E N (Right)

What is the position of letter "L" in the series from the left end?

  1. AOption (a)

    Sixth

  2. BOption (b)

    Fifth

  3. COption (c)

    Seventh

  4. DOption (d)

    Fourth

View answer & explanation

Correct answer

Answer: (b)B.

Fifth

Why this answer is correct

Given: (Left) C X Z A L P W T M D B R O J K F G V Q H E N (Right)

We are required to find the position of the letter “L” from the left end.

PositionLetter
1C
2X
3Z
4A
5L

So, the letter L is at the 5th position from the left.

Hence, the correct answer is Option 2.

Question 12

RRB Group D 2026• General Intelligence & 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 8 7 6 5 4 3 2 1 3 9 8 7 6 (Right)

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

  1. AOption (a)

    One

  2. BOption (b)

    More than three

  3. COption (c)

    Three

  4. DOption (d)

    Two

View answer & explanation

Correct answer

Answer: (b)B.

More than three

Why this answer is correct

Given: 9 8 7 6 5 4 3 2 1 3 9 8 7 6

Now,

We need to find an even number which is immediately preceded by an odd number and immediately followed by an odd number.

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

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

Total valid occurrences = 5.

Hence, the correct answer is 'Option 2'.

Question 13

RRB Group D 2026• General Intelligence & Reasoning

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

155 163 179 187 203 ?

  1. AOption (a)

    209

  2. BOption (b)

    215

  3. COption (c)

    211

  4. DOption (d)

    213

View answer & explanation

Correct answer

Answer: (c)C.

211

Why this answer is correct

The logic followed here is:

thus, "211" will replace the question mark in the given series.

Hence, the correct option is "Option 3".

Question 14

RRB Group D 2026• 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/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(188, 47, 45)

(224, 56, 54)

  1. AOption (a)

    (284, 71, 69)

  2. BOption (b)

    (332, 83, 77)

  3. COption (c)

    (152, 38, 32)

  4. DOption (d)

    (248, 68, 66)

View answer & explanation

Correct answer

Answer: (a)A.

(284, 71, 69)

Why this answer is correct

The logic followed here is:

Logic: Second Number = First Number ÷ 4 and Third Number = Second Number − 2.

For, (188, 47, 45)

⇒ 188 ÷ 4 = 47

⇒ 47 − 2 = 45

For, (224, 56, 54)

⇒ 224 ÷ 4 = 56

⇒ 56 − 2 = 54

Now, checking the options using the same pattern:

Option 1) (284, 71, 69)

⇒ 284 ÷ 4 = 71

⇒ 71 − 2 = 69

Option 2) (332, 83, 77)

⇒ 332 ÷ 4 = 83

⇒ 83 − 2 = 81 ≠ 77

Option 3) (152, 38, 32)

⇒ 152 ÷ 4 = 38

⇒ 38 − 2 = 36 ≠ 32

Option 4) (248, 68, 66)

⇒ 248 ÷ 4 = 62 ≠ 68

Hence, the correct answer is Option 1.

Question 15

RRB Group D 2026• General Intelligence & Reasoning

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

(Left) 475 326 157 761 829 (Right)

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

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

If all the numbers are arranged in ascending order, the position of how many numbers will remain unchanged?

  1. AOption (a)

    None

  2. BOption (b)

    One

  3. COption (c)

    Three

  4. DOption (d)

    Two

View answer & explanation

Correct answer

Answer: (c)C.

Three

Why this answer is correct

The logic followed here is:

Given numbers: 475, 326, 157, 761, 829

Logic: Arrange the given numbers in ascending order and identify the numbers whose positions remain unchanged after sorting.

Original sequence: 475, 326, 157, 761, 829

Arranging in ascending order: 157, 326, 475, 761, 829

PositionOriginalSortedStatus
1475157Changed
2326326Unchanged
3157475Changed
4761761Unchanged
5829829Unchanged

Numbers whose positions remain unchanged: 326, 761, 829

Count = 3

Hence, the correct answer is Option 3.

Question 16

RRB Group D 2026• General Intelligence & Reasoning

Preeti ranked 9th from the bottom and 8th from the top in her class. How many students are there in her class?

  1. AOption (a)

    16

  2. BOption (b)

    14

  3. COption (c)

    15

  4. DOption (d)

    13

View answer & explanation

Correct answer

Answer: (a)A.

16

Why this answer is correct

Given:

Preeti’s rank from the top = 8th, rank from the bottom = 9th.

Total number of students = 8 + 9 – 1 = 16.

So, there are 16 students in the class.

Hence, the correct answer is "Option 1".

Question 17

RRB Group D 2026• 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:

Some grapes are oranges.

All oranges are apples.

Conclusions:

(I) Some grapes are apples.

(II) All apples are oranges.

  1. AOption (a)

    Only conclusion (II) follows

  2. BOption (b)

    Only conclusion (I) follows

  3. COption (c)

    Neither conclusion (I) nor (II) follows

  4. DOption (d)

    Both conclusions (I) and (II) follow

View answer & explanation

Correct answer

Answer: (b)B.

Only conclusion (I) follows

Why this answer is correct

Given Statements:

Some grapes are oranges.

All oranges are apples.

The least possible Venn diagram for the given statements is:

 

Conclusions:

I. Some grapes are apples → Follows (Since some grapes are oranges and all oranges are apples, those grapes must also be apples)

II. All apples are oranges → Does not follow (This is incorrect because the correct relationship is All oranges are apples, not the reverse)

So, only conclusion I follows.

Hence, the correct answer is "Option 2".

Question 18

RRB Group D 2026• General Intelligence & Reasoning

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

\( 170 \div 2 - 150 \div 2 + 254 \times 2 - 156 \times 3 - 10 = ? \)

  1. AOption (a)

    421

  2. BOption (b)

    575

  3. COption (c)

    497

  4. DOption (d)

    601

View answer & explanation

Correct answer

Answer: (b)B.

575

Why this answer is correct

BODMAS Table: 

Decoding the given information:

Alphabet+−×÷
Meaning−+÷×

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

⇒ 170 × 2 + 150 × 2 − 254 ÷ 2 + 156 ÷ 3 + 10 = ?

⇒ 340 + 300 − 127 + 52 + 10 = ?

⇒ 640 − 127 + 52 + 10 = ?

⇒ 702 − 127 = ?

⇒ 575

Hence, the correct option is "Option 2".

Question 19

RRB Group D 2026• General Intelligence & Reasoning

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

  1. AOption (a)

    HMP

  2. BOption (b)

    VZC

  3. COption (c)

    DHK

  4. DOption (d)

    YCF

View answer & explanation

Correct answer

Answer: (a)A.

HMP

Why this answer is correct

The logic followed here is based on the alphabetical position pattern:

Option 1: HMP

Option 2: VZC

Option 3: DHK

Option 4: YCF

Thus, HMP does not follow the uniform pattern of +4, +3.

Hence, the odd one out is Option 1.

Question 20

RRB Group D 2026• General Intelligence & Reasoning

Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only.

(Left) 2 5 6 & 8 & < $ < 7 4 ^ $ 6 5 9 2 & 7 2 % (Right)

How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by another symbol?

  1. AOption (a)

    None

  2. BOption (b)

    One

  3. COption (c)

    Three

  4. DOption (d)

    Two

View answer & explanation

Correct answer

Answer: (d)D.

Two

Why this answer is correct

Given: (Left) 2 5 6 & 8 & < $ < 7 4 ^ $ 6 5 9 2 & 7 2 % (Right)

Now,

We need to find symbols that are immediately preceded by a number and immediately followed by another symbol.

So, Needed pattern is: Number - Symbol - Symbol.

(Left) 2 5 6 & 8 & < $ < 7 **4 ^ $** 6 5 9 2 & 7 2 % (Right)

Total valid symbols = 2.

Hence, the correct answer is 'Option 4'.

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