RRB Group D Reasoning Previous Year Questions

RRB Group D Reasoning Previous Year Questions: Candidates who started preparation for the RRB Group D Reasoning section. They should have the conceptual knowledge and solve the questions. Solving the RRB Group D Reasoning Previous Year Questions can help the candidates know the pattern of the questions asked in the exam. Practice can improve the accuracy. 

Also read:

• RRB Group D Salary
• RRB Group D Syllabus

Problem-Solving Techniques in Reasoning

Candidates should focus on the RRB Group D Reasoning section to get a conceptual understanding to face the questions in the exam. Problem-Solving Techniques in Reasoning can help the candidates get an idea of the patterns in solving questions. 

1. Number Series Logic

Digit Sum Pattern:
Some series do not follow simple addition. The next term is obtained by adding the sum of the digits of the current term to the number itself.
Example: 42 → 4 + 2 = 6 → 42 + 6 = 48

Double Difference Method:
If the first-level differences do not show a clear pattern, calculate the difference of the differences.
A constant second-level difference helps identify the next term in the series.

2. Syllogisms & Inequalities

The Linking Rule (Syllogism):
Identify the common term between two statements. This shared term helps connect the logic and derive a valid conclusion.
Example:
All Colors are Paints
Some Colors are Black
Conclusion: Some Paints are Black

Coded Inequalities Pathing:
Blocked Path: If opposite signs appear together (such as > and <), no definite conclusion can be drawn.
Priority Rule: If the path is clear, the stronger inequality sign dominates. Higher-priority signs override weaker ones.

3. Advanced Coding Techniques

Mathematical Coding:
Letters may be converted using their alphabetical positions and squared, while numbers in the same code are often doubled.

Non-Standard Visual Logic:
When alphabetical logic fails, count the number of straight lines used to write capital letters.
Example:
H = 3 lines
A = 3 lines
L = 2 lines
F = 3 lines
So, HALF = 3323

Application:
V uses 2 straight lines, so its code is 2.

4. Mathematical Reasoning & Ordering

Independent Components Rule:
In an alphanumeric series, solve the letter pattern and number pattern separately before combining them.
Letters may follow a constant shift, while numbers may follow prime gaps or arithmetic progressions.

Overlapping Ranking Concept:
When the sum of ranks from both ends exceeds the total number of people, use the overlapping approach:
Total people = (Left rank + Right rank) − People between − 2

Mental Chaining (Blood Relations):
Instead of drawing a family tree, convert relations into a verbal chain.
Example:
“My father’s brother’s wife’s son” means “my cousin.”

5. Direction & Spatial Logic

NESW Cancellation Method:
To find the final distance without drawing a map:

1. List total movement in North, South, East, and West.

2. Cancel opposite directions (North vs South, East vs West).

3. The remaining distance gives the final direction and displacement.
   
   

Stacking Puzzles (Box Arrangement): First, create mini blocks using direct clues like “H is immediately below L.”
Then, connect these blocks using secondary clues such as “two boxes between M and H.”

RRB Group D Reasoning Previous Year Questions

Candidates can refer to the RRB Group D Reasoning Previous Year Questions to get an idea of the pattern of questions asked in the actual exam. 

1. Numerical Series

Question: Find the next number in the series:
42, 48, 56,?

Logic:
The increment depends on the sum of the digits of the previous number.
42 → 4 + 2 = 6 → 42 + 6 = 48
48 → 4 + 8 = 12 → 48 + 12 = 60 (but base remains in 40s as explained)
Following the same logic, the correct continuation is 56.

Correct Answer: 56

2. Syllogism (Paints & Colours)

Statements:
A. All colours are paints.
B. Some colours are black.

Conclusion:
Some paints are black.

Logic:
Since all colours fall under paints, and some colours are black, those black colours must also be paints.

Correct Answer: Only Conclusion II follows (Option A)

3. Letter–Number Coding

Question: If AC5 is coded as AI10, how is DP30 coded?

Logic:
Letters are converted to their alphabet positions and squared.
A = 1 → 1² = 1
C = 3 → 3² = 9
Number doubles: 5 → 10

Similarly,
D = 4 → 4² = 16
P = 16 → 16² = 256
Number doubles: 30 → 60

Correct Answer: DP60

4. Mathematical Operations (Interchange)

Question: Solve the expression after interchanging + with × and − with ÷.

Logic:
Apply the new meanings first, then follow BODMAS.

Correct Answer: 153

5. Visual Coding

Question: If HALF = 3323 and LAMP = 2343, what is I coded as?

Logic:
The code represents the number of straight lines used to write each letter.
H = 3 lines
A = 3 lines
L = 2 lines
F = 3 lines

The letter I is written using 2 straight lines.

Correct Answer: 2

6. Alphanumeric Series

Question: Find the next term in the series:
U21, W23, ?, ?

Logic:
Letters move forward by +2 positions.
Numbers equal the alphabet position of the letter.

Y = 25

Correct Answer: Y25 (Option D)

7. Symbol–Number–Consonant Counting

Question: How many numbers are preceded by a symbol and followed by a consonant in the given series?

Logic:
Check each number for the pattern:
Symbol → Number → Consonant

Correct Answer: 3

8. Ranking & Order (Overlapping Case)

Question:
Total people = 30
Ashok is 16th from the right
Aruna is 19th from the left
How many people are between them?

Logic:
Position of Ashok from left = 30 − 16 + 1 = 15
Difference = 19 − 15 − 1

Correct Answer: 3

9. Odd One Out

Question: Peso, Dollar, Euro, Ounce

Logic:
Peso, Dollar, and Euro are currencies.
Ounce is a unit of weight.

Correct Answer: Ounce

10. Direction Sense

Question: After moving in different directions with left and right turns, what is the final position?

Logic:
Draw a direction grid and cancel opposite movements (North–South, East–West).

Correct Answer: 30 meters South

11. Coded Inequality

Question: Given coded inequalities, which conclusion follows?

Logic:
Check whether the inequality symbols allow a valid comparison path between the letters.

Correct Answer: Neither I nor II follows