Logical Reasoning Test: What to Expect and How to Prepare
Logical reasoning tests measure your ability to work with statements, identify valid conclusions, and spot logical errors. Unlike abstract reasoning (which uses shapes and patterns), logical reasoning uses words and propositions. You read statements, apply rules of logic, and select the correct answer. This article explains what logical reasoning tests are, common question types, and how to prepare effectively.
What Are Logical Reasoning Tests?
Definition – Logical reasoning tests assess your ability to draw valid conclusions from given information. They measure deductive and inductive reasoning—whether you can follow logical rules and avoid fallacies.
Format – Typically text-based. You read short passages or statements. You answer multiple-choice questions about conclusions, assumptions, or logical validity. Some tests include diagrams or tables.
Duration – Usually 20–40 questions in 20–30 minutes. Time pressure is common. You need both accuracy and speed.
Where they appear – Graduate recruitment, consulting, law, finance, and government. Often combined with numerical and verbal reasoning in assessment batteries.
Logical Reasoning vs Abstract Reasoning
Abstract reasoning – Visual. Shapes, matrices, patterns. You infer rules from figures. No words (or minimal).
Logical reasoning – Text-based. Statements, premises, conclusions. You apply logic rules. Words and propositions.
Overlap – Both require logical thinking. But the format differs. Abstract = visual patterns. Logical = verbal propositions. Prepare for each separately.
Common Question Types
Syllogisms – "All A are B. All B are C. Therefore?" You derive conclusions from premises. Classic deductive logic.
Conditional logic – "If P then Q. P is true. Therefore?" You apply if-then rules. Modus ponens, modus tollens, and contrapositive.
Assumption identification – "What must be true for this argument to hold?" You find hidden premises or assumptions.
Conclusion identification – "Which conclusion follows from the statements?" You select the valid conclusion. Others may be invalid (too strong, irrelevant, or reversed).
Logical fallacies – "What is wrong with this argument?" You identify flaws: circular reasoning, false dichotomy, irrelevant appeal, etc.
True/False/Cannot Say – "Based on the passage, is this statement true, false, or cannot be determined?" You stick to the given information.
Strengthen/Weaken – "Which option strengthens/weakens the argument?" You evaluate evidence and reasoning.
Key Logic Concepts to Know
Deductive reasoning – From general to specific. If premises are true, conclusion must be true. No new information in the conclusion.
Inductive reasoning – From specific to general. Conclusion is probable, not certain. Based on patterns or evidence.
Necessary vs sufficient – Necessary: required for the conclusion. Sufficient: enough to guarantee the conclusion. Different logical roles.
Modus ponens – If P then Q. P. Therefore Q. Valid.
Modus tollens – If P then Q. Not Q. Therefore not P. Valid.
Affirming the consequent – If P then Q. Q. Therefore P. Invalid. Common trap.
Denying the antecedent – If P then Q. Not P. Therefore not Q. Invalid. Common trap.
Contrapositive – If P then Q is equivalent to If not Q then not P. Use this to simplify.
How to Prepare
Learn the logic rules – Syllogisms, conditionals, necessary/sufficient. Study the valid and invalid forms. Recognise common traps.
Practice with quality materials – Use questions similar to your target test. SHL, Watson-Glaser, and other providers have distinct styles. Match your practice.
Work under time – Logical reasoning tests are timed. Practice with a timer. Build speed. Learn to move on when stuck.
Read carefully – One word can change the meaning. "All" vs "some." "If" vs "only if." "Necessary" vs "sufficient." Pay attention.
Eliminate wrong answers – Wrong options often make invalid leaps. Too strong. Reversed logic. Irrelevant. Eliminate before choosing.
Track your errors – After practice, review mistakes. Wrong logic rule? Misread? Rushed? Address the cause.
Practice with logical reasoning questions and our aptitude test practice.
Frequently Asked Questions
Are logical reasoning and critical thinking the same?
Overlapping but not identical. Critical thinking is broader (evaluation, argument analysis, bias). Logical reasoning focuses on formal logic—syllogisms, conditionals, validity. Many tests mix both.
How long should I prepare?
2–4 weeks of regular practice (30–60 minutes, 3–5 times per week). Learn the rules first, then practice under time. More for high-stakes (e.g. law, consulting).
Can I improve my logical reasoning?
Yes. Logic rules can be learned. Practice improves recognition of valid/invalid forms. Pattern recognition for logic improves with exposure.