Aon uses several tests that carry the word logic. This guide sorts them, then focuses on the written premises test known as AP Reasoning.
Aon's official practice document for Logical Reasoning (AP Reasoning) says the assessment has 10 adaptive questions with 2 minutes 30 seconds per question. You read premises and pick the conclusion that logically follows. Aon also lists separate inductive and deductive logic tests, each with its own format and time limit.
Candidates searching for Aon logical reasoning land on several different tests. Aon's candidate page groups these under a Logic Tests heading. The table below lists the published time limits and task counts so you can match your invitation to the right guide.
| Test | Aon wording | Time / tasks | Our guide |
|---|---|---|---|
| Inductive Logical Reasoning (clx) | Common patterns and interrelationships in groups of items | 6 minutes; count not stated | scales clx |
| Inductive Reasoning (ix) | Find the common rule, then pick the item that does not fit | 5 minutes; 20 tasks | scales ix |
| Inductive-logical Thinking (cls) | Identify rules in patterns, then assign new images to patterns | 12 minutes; 12 tasks | scales cls |
| Deductive-logical Thinking (gapChallenge) | Use the grid pattern to fill an empty cell | 6 minutes; count not stated | gapChallenge |
| Deductive Reasoning (switchChallenge) | Identify the 4-digit number sequences that give the right result | 6 minutes; count not stated | switchChallenge |
| Logical Reasoning (AP Reasoning) | Apply given rules to written premises; choose the conclusion that follows | 10 adaptive questions; 2:30 each | This page |
The AP Reasoning row comes from its own official practice PDF rather than the candidate-page table, which is why its format is described differently. Which of these your employer sends depends on the role and the year.
The official practice document describes the assessment as applying given rules to logical problems in one or more steps. You are shown premises and a list of candidate conclusions. Your job is to find the single conclusion that logically follows, either by spotting it directly or by eliminating those that do not.
Two features matter for preparation. First, the test is adaptive: the next question depends on how you answered the last, and difficulty may rise. Second, the time limit is per question, not for the whole test, so pacing means something different here than in a 12-minute statement test.
The practice material includes several question shapes: an "at least some" overlap statement, a ranking of items by size, a scheduling puzzle with before and after rules, a chain of conditional statements, and a conclusion that can be drawn from universal claims.
Both examples were written for this guide and verified by checking every possible arrangement in code.
With 2 minutes 30 seconds per question, there is room to draw a quick diagram. Practise spending the first 20 to 30 seconds translating the premises and keeping the rest for testing options. Aon recommends using a pencil to track steps in the logical tests, so build a pen-and-paper habit now.
If your invitation also includes a personality or work-style questionnaire, ReasonEra does not cover that part.
ReasonEra's logical reasoning question type covers premises-and-conclusion items, ordering puzzles and conditional chains. Attempt a practice question yourself first, then upload the screenshot and choose Tutor Explanation to see a premise-by-premise breakdown. Test your own reasoning by asking, for each wrong option, what counter-example the explanation uses.
Sign-up includes 3 free trials, and a 14-Day Pass costs 49 € for unlimited use for 14 days. Our free logical practice test below contains ten original timed items.
Pages like these date fast, so check your own invitation for the final word.
ReasonEra is designed for practice and learning, but many employers prohibit outside help during a live assessment, so read your invitation and keep ReasonEra for preparation.
AP Reasoning is Aon's logical reasoning assessment in which you read premises and choose the conclusion that logically follows. Aon's practice document says it consists of 10 adaptive questions.
Aon's official practice document states 2 minutes 30 seconds per question for the 10-question logical reasoning assessment. Check your own invitation, since configurations can differ.
Adaptive means the next question is chosen according to how you answered the previous one, so difficulty may rise as you progress. Aon states this in its practice document.
AP Reasoning is rule-based and deductive in nature, since you apply premises to reach a guaranteed conclusion. Aon also offers separate inductive tests such as scales clx, ix and cls.
Yes. Aon publishes a practice PDF with five AP Reasoning questions and rationales, and the real assessment gives you practice tasks that can be repeated before the timed part.
Pick a question that has been stumping you and upload it. The first three tries are free with an account.
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Notes. Everything described here rests on publicly available information, listed in the sources section. ReasonEra has no affiliation with the organisations named on this page.