Logical Reasoning Questions and Answers

TL;DR: Logical reasoning questions test your ability to analyze information, spot patterns, and draw valid conclusions using logic rather than memorized facts. They form a core part of competitive exams, campus placements, bank and government recruitment tests, and employer aptitude assessments.

Whether you are preparing for the CAT, an IBPS bank exam, an SSC paper, or a company's pre-interview screening, strong logical reasoning skills can be the difference between clearing a cut-off and missing it.

This guide walks you through the main types of logical reasoning questions, gives you solved examples with clear explanations for each, and shares practical tips to help you solve them faster and more accurately.

What Is Logical Reasoning?

Logical reasoning is the ability to understand and use the connections between facts, ideas, or patterns to reach a sound conclusion. Instead of relying on prior knowledge, you work only with the information given and apply structured thinking to arrive at the correct answer.

Employers and exam boards value this skill because it reflects how well a person can solve problems, think critically, and make decisions under pressure.

Verbal vs. Non-Verbal Reasoning

Logical reasoning is broadly split into two categories. Verbal reasoning is expressed through words and statements. For example, syllogisms, blood relations, and statement-and-conclusion questions that require you to interpret language and logic together. Non-verbal reasoning is presented through images, figures, and patterns, such as series completion, shape analogies, and matrix puzzles, like Raven's Progressive Matrices. Most exams test a mix of both.

Types of Logical Reasoning Questions

Logical reasoning covers a wide range of question formats. The most common types you will encounter across exams and interviews include:

• Number and letter series: identify the pattern and find the missing or next term.
• Analogies: find the relationship between a pair and apply it to another.
• Syllogisms: draw valid conclusions from two or more given statements.
• Blood relations: work out how people in a family are connected.
• Coding–decoding: decode words or numbers using a hidden rule.
• Seating arrangement: place people or objects based on given conditions.
• Statement and assumption/conclusion: judge what logically follows.
• Cause and effect: decide which event triggered another.
• Logical deduction: reach a certain conclusion from premises.
• Direction sense: track movement and find distance or direction.
• Classification (odd one out): spot the item that does not belong.

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15 Logical Reasoning Questions with Answers

Below are solved examples organized by type. Each question comes with the correct answer and a short explanation so you can understand the method, not just the result. Try to solve each one yourself before reading the explanation.

1. Number Series Questions

Q1. Find the next number in the series: 2, 6, 12, 20, 30, ?

1. A) 40
2. B) 42
3. C) 44
4. D) 46

Answer: B) 42

Explanation: The differences between consecutive terms are 4, 6, 8, 10, increasing by 2 each time. The next difference is 12, so 30 + 12 = 42.

Q2. Complete the series: 3, 9, 27, 81, ?

1. A) 162
2. B) 243
3. C) 216
4. D) 324

Answer: B) 243

Explanation: Each term is multiplied by 3 to get the next term. So 81 × 3 = 243.

Q3. Find the missing term: 5, 11, 23, 47, ?

1. A) 95
2. B) 94
3. C) 92
4. D) 96

Answer: A) 95

Explanation: Each term follows the rule (previous × 2 + 1). So 47 × 2 + 1 = 95.

2. Analogy Questions

Q4. Book is to Reading as Fork is to ?

1. A) Drawing
2. B) Writing
3. C) Eating
4. D) Stirring

Answer: C) Eating

Explanation: A book is used for reading, so the relationship is 'object : its primary use.' A fork is used for eating.

Q5. Doctor is to Hospital as Teacher is to ?

1. A) Class
2. B) School
3. C) Student
4. D) Book

Answer: B) School

Explanation: A doctor works in a hospital; a teacher works in a school. The relationship is 'professional : workplace.'

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3. Syllogism Questions

Q6. Statements: All roses are flowers. Some flowers fade quickly. Conclusion: Some roses fade quickly.

1. A) Conclusion follows
2. B) Conclusion does not follow
3. C) Cannot be determined
4. D) Both A and C

Answer: B) Conclusion does not follow

Explanation: All roses are flowers, but not all flowers that fade quickly are roses. Since the overlap is not guaranteed, the conclusion does not necessarily follow.

Q7. Statements: All cats are animals. All animals need oxygen. Conclusion: All cats need oxygen.

1. A) Follows
2. B) Does not follow
3. C) Uncertain
4. D) None

Answer: A) Follows

Explanation: If every cat is an animal, and every animal needs oxygen, then it logically follows that every cat needs oxygen.

4. Blood Relation Questions

Q8. Pointing to a photograph, a man said, 'She is the daughter of my grandfather's only son.' How is the woman related to the man?

1. A) Sister
2. B) Mother
3. C) Cousin
4. D) Aunt

Answer: A) Sister

Explanation: The grandfather's only son is the man's father. The daughter of the man's father is the man's sister.

Q9. If A is the brother of B, B is the sister of C, and C is the father of D, how is A related to D?

1. A) Father
2. B) Uncle
3. C) Brother
4. D) Grandfather

Answer: B) Uncle

Explanation: A and B are siblings, and C (also their sibling) is the father of D. So A is D's uncle.

5. Coding–Decoding Questions

Q10. If CAT is coded as DBU, how is DOG coded?

1. A) EPH
2. B) EPG
3. C) DPH
4. D) FPI

Answer: A) EPH

Explanation: Each letter is shifted one place forward in the alphabet: D→E, O→P, G→H, giving EPH.

Q11. In a code, MOUSE is written as PRXVH. How is TABLE written?

1. A) WDEOH
2. B) WDEHO
3. C) VDEOH
4. D) WCEOH

Answer: A) WDEOH

Explanation: Each letter moves three places forward: T→W, A→D, B→E, L→O, E→H, giving WDEOH.

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6. Seating Arrangement Questions

Q12. Five friends P, Q, R, S, T sit in a row. Q is to the immediate right of P. R is at the extreme left. S is between Q and T. Who sits in the middle?

1. A) P
2. B) Q
3. C) S
4. D) T

Answer: B) Q

Explanation: The order from left to right is R, P, Q, S, T. Q occupies the third (middle) position.

7. Statement and Conclusion Questions

Q13. Statement: Regular exercise improves health. Conclusion: People who never exercise are always unhealthy.

1. A) Conclusion follows
2. B) Conclusion does not follow
3. C) Partly follows
4. D) None

Answer: B) Conclusion does not follow

Explanation: The statement says exercise improves health, but it does not claim that a lack of exercise always makes someone unhealthy. The word 'always' makes the conclusion too strong.

Q14. Statement: The library will remain closed on public holidays. Conclusion: The library is open on all other days.

1. A) Follows
2. B) Does not follow
3. C) Uncertain
4. D) None

Answer: B) Does not follow

Explanation: Closing on holidays does not guarantee the library is open on every other day — it may also close for other reasons. So the conclusion cannot be assumed.

8. Direction Sense Questions

Q15. A man walks 4 km north, turns right, and walks 3 km. How far is he from the starting point?

1. A) 5 km
2. B) 7 km
3. C) 6 km
4. D) 4 km

Answer: A) 5 km

Explanation: The two legs form a right-angled triangle with sides 4 km and 3 km. The straight-line distance is √(4² + 3²) = √25 = 5 km.

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How to Solve Logical Reasoning Questions Faster

Speed and accuracy both matter in timed exams. These practical tips will help you improve on both fronts:

• Read the entire statement before glancing at the options; jumping ahead leads to careless errors.
• Eliminate clearly wrong choices first to narrow your focus and save time.
• Draw quick diagrams for blood relations, directions, and seating arrangements instead of solving them in your head.
• Learn common series patterns such as squares, cubes, primes, and alternating sequences.
• Practice with a timer to build the pace you will need on exam day.
• Review every wrong answer to understand the trap and avoid repeating the same mistake.

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FAQs

1. What are logical reasoning questions?

Logical reasoning questions test your ability to analyze information, recognize patterns, and draw valid conclusions using logic rather than memorized facts. They include formats such as series, analogies, syllogisms, blood relations, and coding–decoding, and appear in competitive exams and job aptitude tests.

2. What are the main types of logical reasoning questions?

The main types include number and letter series, analogies, syllogisms, blood relations, coding–decoding, seating arrangement, statement and conclusion, cause and effect, direction sense, and classification. Exams usually test a mix of verbal and non-verbal reasoning.

3. How can I improve my logical reasoning skills?

Practice regularly across all question types, learn the common patterns, use diagrams for spatial questions, solve under timed conditions, and review your mistakes carefully. Daily consistent practice improves both speed and accuracy over time.

4. Are logical reasoning tests hard?

Difficulty varies. Basic series and analogy questions are approachable for beginners, while multi-step puzzles and syllogisms need more practice. With structured preparation, most people improve significantly, even on harder adaptive tests.

5. Where can I practice logical reasoning questions for free?

You can practice on educational platforms and aptitude websites that offer solved questions, online quizzes, and downloadable PDFs. Regularly attempting free mock tests is one of the most effective ways to prepare.