📘 Introduction
Logical reasoning is one of the most scoring sections in competitive exams like OSSSC, SSC, Banking, and Railway exams. Topics such as analogy, classification, coding-decoding, and series are frequently asked and follow predictable patterns.
These questions test your ability to identify patterns, relationships, and logical rules. With proper practice and understanding of concepts, you can solve these questions quickly and accurately. This MCQ set includes clear explanations to help you understand the logic behind each answer.
📝 Reasoning MCQs (With Explanation)
🔹 Section 1: Analogy
Q1. Book : Read :: Knife : ?
A. Cut
B. Write
C. Draw
D. Eat
Answer: A
Explanation: A book is used for reading, similarly a knife is used for cutting.
Q2. Dog : Puppy :: Cat : ?
A. Kitten
B. Cub
C. Calf
D. Chick
Answer: A
Explanation: Puppy is the young one of dog; kitten is the young one of cat.
Q3. Glass : Break :: Fire : ?
A. Burn
B. Flow
C. Melt
D. Freeze
Answer: A
Explanation: Glass breaks, fire burns. This is action-based analogy.
👉 Exam Tip: Analogy questions test relationships (function, cause-effect, category).
🔹 Section 2: Classification (Odd One Out)
Q4. Find the odd one out:
A. Apple
B. Mango
C. Banana
D. Carrot
Answer: D
Explanation: Carrot is a vegetable, others are fruits.
Q5. Find the odd number:
A. 2
B. 3
C. 5
D. 9
Answer: D
Explanation: 9 is not a prime number; others are prime.
Q6. Find the odd word:
A. CAT
B. DOG
C. RAT
D. PEN
Answer: D
Explanation: First three are animals; PEN is not.
👉 Quick Tip: Always find common property first, then eliminate.
🔹 Section 3: Coding-Decoding
Q7. If DOG = GQI, then CAT = ?
A. FJW
B. IKF
C. EDW
D. GHY
Answer: C
Explanation: Pattern: +3, +2, +2 shift in letters. Apply same to CAT → EDW.
Q8. If PEN = QFO, then INK = ?
A. JOL
B. KPM
C. IOK
D. JNL
Answer: A
Explanation: Each letter shifts +1 → INK becomes JOL.
Q9. If CAT = DBU, then DOG = ?
A. EPH
B. FQI
C. GRI
D. DPH
Answer: A
Explanation: Each letter shifts +1 → DOG = EPH.
👉 Exam Tip: Coding-decoding tests pattern recognition and logical thinking.
🔹 Section 4: Series
Q10. Find next term:
2, 4, 8, 16, ?
A. 20
B. 24
C. 32
D. 64
Answer: C
Explanation: Each number is multiplied by 2.
Q11. Find next term:
A, C, E, G, ?
A. H
B. I
C. J
D. K
Answer: B
Explanation: Letters skip one position → next is I.
Q12. Find missing term:
5, 10, 20, 40, ?
A. 60
B. 70
C. 80
D. 90
Answer: C
Explanation: Each term ×2 → next is 80.
👉 Exam Tip: Series questions are based on patterns like +, ×, alphabet positions.
🔹 Section 5: Mixed Questions
Q13. If A = 1, B = 2, then CAT = ?
A. 3-1-20
B. 2-1-19
C. 3-2-20
D. 1-3-20
Answer: A
Explanation: C=3, A=1, T=20.
Q14. Find next term:
SCD, TEF, UGH, ?
A. VJI
B. VIJ
C. WKL
D. XYZ
Answer: B
Explanation: Pattern follows alphabet shifting → next is VIJ.
Q15. Find odd one:
Circle, Square, Triangle, Line
A. Circle
B. Square
C. Triangle
D. Line
Answer: D
Explanation: Line is not a closed shape.
🔑 Key Points Summary
- Analogy = relationship-based questions
- Classification = find odd one
- Coding-decoding = pattern logic
- Series = sequence pattern
- Practice improves speed & accuracy
- These topics repeat in exams
📌 Conclusion
Reasoning is one of the easiest sections to score if you understand the patterns and practice regularly. Focus on core topics like analogy, classification, coding-decoding, and series. Try to solve questions daily and learn from explanations. With consistent practice, you can solve most reasoning questions within seconds and improve your overall exam score.
OSSC Reasoning – 100 MCQs (My Real Study Notes)
So, I’ve been preparing Reasoning for OSSC exams like RI, ARI, Amin, Forest Guard… and honestly, this subject looked very easy in the beginning.
I was like, “No theory, no memorizing… this will be simple.”
But when I actually started solving MCQs, I got confused a lot 😅
Questions looked easy, but options were tricky. Sometimes I knew the concept, but still marked the wrong answer.
Then I understood one important thing:
Reasoning is not tough, but it needs practice + clear thinking.
So I’m sharing how I studied, in a simple way. Like explaining to a friend.
1. Analogy
This is one of the easiest topics.
But still, I made mistakes in the beginning because I rushed.
Basic idea:
Find relationship between two words.
Example:
Cat : Kitten :: Dog : ?
Answer: Puppy
My trick:
First understand first pair clearly, then apply same logic.
Mistake I made:
I used to guess without checking relation properly.
2. Classification (Odd One Out)
This looks easy but can be tricky.
Example:
Apple, Mango, Banana, Car
Answer: Car
My approach:
Check what is common in 3 options.
Tip:
Don’t just look at one option, compare all.
3. Coding-Decoding
This topic confused me a lot earlier 😅
Example:
If CAT = DBU
Then DOG = ?
Answer: EPH
My trick:
Check letter pattern: C→D (+1), A→B (+1), T→U (+1)
Apply same logic.
Tip:
Don’t panic. Just go step by step.
4. Series (Number & Alphabet)
This is very common in exams.
Example:
2, 4, 8, 16, ?
Answer: 32
My trick:
Check:
- Addition
- Multiplication
- Pattern
Mistake:
I used to assume pattern quickly. Now I verify all terms.
5. Blood Relation
This topic gave me headache at first 😅
My method:
Always draw diagram.
Example:
Ram is father of Shyam
Shyam is brother of Mohan
Ram is?
Answer: Father of both
Tip:
Don’t solve in mind. Use rough work.
6. Direction Sense
This is fun if you imagine it.
Example:
Person goes north, then right, then left…
My trick:
I imagine myself walking or use hand direction.
Tip:
Practice makes it easy.
7. Syllogism
This topic is tricky.
Example:
All dogs are animals
Some animals are cats
Conclusion?
My learning:
Don’t assume extra info.
Only follow given statements.
8. Puzzles
This part is time-taking.
Example:
Seating arrangement, order puzzles
My approach:
- Break into parts
- Solve step by step
Tip:
Don’t panic seeing long question.
How I Practice MCQs
Earlier I solved random questions.
Now I follow:
- One topic at a time
- Solve 20–30 MCQs
- Check mistakes
- Revise
This improved my speed.
Sample MCQs
1. Analogy: Book : Read :: Food : ?
Answer: Eat
2. Odd one: Cow, Goat, Tiger, Chair
Answer: Chair
3. Coding: BAT = ? (A=1, B=2)
Answer: 2+1+20 = 23
4. Series: 5, 10, 20, 40, ?
Answer: 80
5. Blood relation: Brother of father = ?
Answer: Uncle
Mistakes I Made
1. Guessing answers
Didn’t check pattern.
2. Solving in mind
Got confused.
3. Rushing
Made silly mistakes.
One Small Insight
After practicing daily, I noticed my thinking improved.
At first:
- Slow
Now:
- Faster + accurate
One Relatable Example
Sometimes I see a question and feel: “I know this…”
But still choose wrong option.
Now I pause and recheck.
My Personal Tips
1. Practice daily
Reasoning needs practice.
2. Use rough work
Very important.
3. Stay calm
Don’t panic.
4. Learn from mistakes
Best way to improve.
Final Thoughts
Reasoning for OSSC exams is scoring.
No need to memorize anything.
Just understand patterns.
Just remember:
- Practice regularly
- Improve speed
- Maintain accuracy
Even 1 hour daily is enough.
MCQ Practice Rules
- Read question carefully
- Don’t assume
- Use pen and paper
- Skip tough questions
- Analyze mistakes
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