Logical Reasoning Test — free practice test
A logical reasoning test measures your ability to spot patterns, draw valid conclusions and solve problems through structured thinking rather than prior knowledge. It covers verbal reasoning (syllogisms, statements and assumptions) and non-verbal reasoning (series, analogies and figures), and is a core part of most aptitude and placement screens.
Updated 2026-06-19 · 8 marked questions on this page, no signup · 10 worked sample questions with answers · AI-scored mock tests run inside the OnJob app.
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8 multiple-choice questions in the style of a real logical reasoning test, marked instantly on this page. Every answer comes with the working, so a wrong pick tells you which concept to revise. Nothing to install, no account, no email.
Key takeaways
- A logical reasoning test measures your ability to spot patterns, draw valid conclusions and solve problems through structured thinking rather than prior knowledge.
- A Logical Reasoning Test typically covers: Series and sequences, Syllogisms and deductions, Coding-decoding, Analytical puzzles.
- You can take a 8-question practice test on this page — it marks itself instantly and shows the working for every answer, with no signup.
What a logical reasoning test covers
Series and sequences
Identifying the rule behind number, letter or figure series and predicting the next term.
Syllogisms and deductions
Judging whether a conclusion necessarily follows from given statements.
Coding-decoding
Cracking the rule that maps letters or numbers to a coded form and applying it.
Analytical puzzles
Seating arrangements, blood relations, directions and ordering puzzles.
10 sample logical reasoning test questions with answers
Genuinely-correct, worked examples. Try each one before opening the answer , then go back to the marked practice test above and sit it against the clock .
Q1. If CAT is coded as DBU, how is DOG coded?
Answer: Each letter shifts forward by one position in the alphabet (C→D, A→B, T→U). Applying the same shift to DOG gives E, P, H — so DOG is coded as EPH.
Q2. All cats are animals. Some animals are wild. Does it follow that some cats are wild?
Answer: No. All cats are inside the set of animals, but the wild animals need not include any cats. Without a guaranteed overlap the conclusion does not necessarily follow, so it is invalid.
Q3. Find the next term: 3, 6, 11, 18, 27, ?
Answer: The differences are 3, 5, 7, 9 — consecutive odd numbers — so the next difference is 11, giving 27 + 11 = 38.
Q4. Pointing to a photo, a man says, 'She is the daughter of my grandfather's only son.' Who is she to him?
Answer: His grandfather's only son is the man's own father, so the daughter of his father is his sister.
Q5. Complete the analogy: Hand is to Glove as Foot is to ?
Answer: A glove covers a hand, so the item that covers a foot is a sock (or shoe). The relationship is 'covering worn on', so the answer is sock.
Q6. If MONDAY is coded as NPOEBZ, how is FRIDAY coded?
Answer: Every letter moves forward one place in the alphabet (M→N, O→P, N→O, D→E, A→B, Y→Z). Applying the same +1 shift to FRIDAY gives G, S, J, E, B, Z — so FRIDAY is coded GSJEBZ.
Q7. Statements: All pens are books. All books are tables. Does the conclusion "All pens are tables" follow?
Answer: Yes. Every pen sits inside the set of books, and every book sits inside the set of tables, so every pen must also sit inside tables. A chain of "all A are B, all B are C" is transitive and always yields "all A are C".
Q8. A is B's brother, C is A's mother, and D is C's father. How is B related to D?
Answer: A and B are siblings, so C is the mother of both. D is C's father, which makes D the grandfather of A and of B — B is D's grandchild.
Q9. Find the odd one out: 8, 27, 64, 100, 125.
Answer: All of them are perfect cubes — 2³, 3³, 4³ and 5³ — except 100, which is 10², a perfect square but not a cube. So 100 is the odd one out.
Q10. Facing north, you turn 90° clockwise, then 180°, then 90° anticlockwise. Which direction do you face?
Answer: Apply one turn at a time. From north, 90° clockwise faces east. A further 180° faces west. Turning 90° anticlockwise from west faces south. Adding the angles first is what causes mistakes here.
How to prepare for a logical reasoning test
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Learn to classify a question by type first — series, syllogism, coding or puzzle — because each type has a reliable method.
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For syllogisms, sketch Venn diagrams; a conclusion is valid only if it holds for every possible diagram.
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For series, always check the differences between terms, then the differences of those differences, before testing ratios.
- 4
Time yourself; reasoning questions are quick once you recognise the pattern, so do not over-think the easy ones.
- 5
Build a mental library of common patterns (squares, primes, alternating series) so you recognise them instantly.
Frequently asked questions
Everything you need to know before you create your free profile.
Create My Free Profile What is a logical reasoning test?
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Pattern, sequence and deduction questions that measure how you reason — used in placements, banking and government exams. This page covers what it measures, 10 worked sample questions with answers, and 5 ways to prepare — then you can sit a timed, scored version in OnJob's free AI mock tests.
If CAT is coded as DBU, how is DOG coded?
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Each letter shifts forward by one position in the alphabet (C→D, A→B, T→U). Applying the same shift to DOG gives E, P, H — so DOG is coded as EPH.
All cats are animals. Some animals are wild. Does it follow that some cats are wild?
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No. All cats are inside the set of animals, but the wild animals need not include any cats. Without a guaranteed overlap the conclusion does not necessarily follow, so it is invalid.
Can I take the test on this page, or do I have to sign up?
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You can take it right here. The practice test above has 8 multiple-choice questions, marks itself the moment you press "Check my score", and shows the working for every answer. No account, no email and no download. Signing up is only needed for OnJob's AI-scored mock tests, which grade written and spoken answers and can earn a verified skill badge.
Are these logical reasoning test questions free to practise?
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Yes. Every sample question and answer on this page is free to read. OnJob's AI mock tests are free to start (₹0) — you get up to 3 mock tests and 1 real, badge-earning test every month, with instant scoring and feedback. Pro (₹99/month) adds more attempts and deeper analytics.
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