Aon Test

The scales ability tests for numerical, verbal, inductive, deductive and mechanical reasoning, the smartPredict games, chatAssess situational judgement and the ADEPT-15 questionnaire. The question count and time limit for each, how the intro video and practice questions work, and how the percentile is read.

  • 10 questions
  • 13 minutes
  • Worked solutions

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What is an Aon test?

An Aon test is an online psychometric test from Aon's assessment business, built on the cut-e test range Aon acquired in 2017. It spans the scales ability tests, short timed measures of numerical, verbal and abstract reasoning, the smartPredict gamified assessments, and the ADEPT-15 personality questionnaire. The tests are mobile friendly, delivered in more than 40 languages, and around 30 million assessments are administered each year.

Which Aon test you sit depends on the employer and the role: an entry-level position will not be given the same assessment as a graduate or managerial one.

How an Aon test works

Four things to know before you sit one. Timings and difficulty vary with the level of the role.

FormatShort modular tests
Each Aon test measures one aptitude and lasts 2 to 20 minutes, so an employer strings several together. Every test opens with a short instruction video and a few untimed practice questions before the clock starts.
PaceAs many as you can
Most scales tests give you more questions than anyone finishes. The score is how many you get right in the time, so unanswered questions at the end are expected, not a failure.
DifficultySeveral tests adaptive
Answer well and the next questions get harder; the level of the test is set to the role, so a graduate sitting is harder than an entry-level one.
ScoringA percentile against the employer's bar
There is no fixed pass mark. Your result is a position against a comparison group and each employer sets its own threshold for the role.

Aon: assessment names, formats and timings

Match the name in your invitation to the assessment below. Timings marked “approx.” are completion estimates; other published durations are limits for the named version.

Named Aon assessments
Assessment What it measures Questions Timing
scales verbal Reading short pieces of information across tabs and judging statements true, false or cannot say 49 12 min
scales numerical Tables, graphs and charts across tabs; true, false or cannot say 37 12 min
scales verbal instruct Short paragraphs of instructions, true or false 24 8 min
scales lt English language skills; spelling, definitions and sentence completion Three tasks 10 min
scales mtu Mechanical principles from graphics; gears, levers and pulleys 24 15 min
scales eql Mental arithmetic; fill the gap in an equation As many as you can 5 min
digitChallenge Numeracy; fill the gap in an equation with a digit from 1 to 9 As many as you can 6 min
scales cls Inductive reasoning; find the rule linking grids and colours, then sort new images 12 12 min
scales ix Inductive reasoning; find the item in a series that does not follow the rule 20 5 min
scales clx Inductive reasoning; identify the rule governing two grids and pick the two that follow it As many as you can 6 min
switchChallenge Deductive reasoning; which operators turn the input shapes into the output shapes As many as you can 6 min
gapChallenge Deductive reasoning; which shape replaces the question mark in a grid As many as you can 6 min
gridChallenge Working memory; recall a pattern of dots while completing another task 9 9 min
motionChallenge Planning; move a shape through a grid of barriers to the exit As many as you can 6 min
scales e3+ Concentration; is each item the letter E with three dots As many as you can 2 min
chatAssess Situational judgement as an inbox of messages to reply to Inbox 20 min
ADEPT-15 Work-style preferences 100 statements Approx. 30 min; untimed

Counts and timings vary by role level and by the version an employer licences. Check the instructions on the screen before you start. Facts checked 11 September 2026.

These are Aon’s published task limits. Cut-e assessments are now part of Aon. Follow your invitation for the version and any agreed adjustments.

Official sources for assessment names and timings

What Aon assessment formats look like

A visual guide to the skills and response formats covered on this page. Your invitation tells you which assessments to prepare for.

Illustrations by Practice Aptitude Tests · not official test screenshots

scales verbal

Judge statements using the supplied information, with true, false or cannot say responses.

scales e3+

Identify the target letter-and-dot combination quickly and accurately.

View guidance

chatAssess

Reply to workplace messages in a simulated inbox.

View guidance

Employers who set Aon tests

If you know which company invited you, start there: the employer guide tells you which Aon assessment sits at which stage of that firm's process.

Not listed? Browse all employer guides.

Practise with the full pack

The free test shows you the style. A pack gives you the pace: Varies by task a question, marked, with the working shown.

Unlock 10 Aon practice tests £39 a year, or £29 a month. Cancel any time
10
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100
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Practice Aptitude Tests · Original data

How our test takers score

Results from every test in our Aon pack, past and present.

142,930completed sittings · 2026 edition

Key findingAon test takers gain 8 points by their fifth practice test.

Average score64%Half scored 67% or more
Top quarter scored87%+The 75th percentile
Full marks1 in 10of sittings scored 100%
Gain from practice+8 ptsFirst test to fifth test

How scores spread

37% scored 80% or more, and 18% scored under 40%.

4%0–1914%20–3920%40–5925%60–7937%80–100

Share of sittings in each score band.

Practice pays

Regular practisers went from 67% on their first test to 75% on their fifth.

67%1st test69%2nd test71%3rd test73%4th test75%5th test

3,142 people who took five or more tests.

Does speed help?

Speed makes little difference here.

Quickest quarter61%
Slowest quarter65%

Typical pace: 48 seconds a question.

Source: Practice Aptitude Tests · 142,930 completed sittings · 2026 edition, 14 October 2026

Every completed sitting of every test this pack holds or has held. Practice results, not employer pass marks. Free to reuse with credit. Compare every pack

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Aon is a trademark of its respective owner. Practice Aptitude Tests is not affiliated with Aon and our practice tests are not endorsed by them.