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Mercer Assessments

    • 18 tests |
    • 196 questions

Mercer was founded in 1945 and is now the largest Human Resources consulting company in the world. It employs 25,000 employees and provides services in over 130 countries. Jobs at Mercer are highly sought after, and its competitive recruitment process consists of several stages, including aptitude tests and interviews.

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Mercer assessment centre

The assessment centre stage of the interview process is a full day of activities and tests designed to evaluate your soft skills as well as your aptitude and knowledge. This is a pressured situation, where you are expected to perform at your best while being watched by Mercer assessors and compared against your peers.

Preparation is the key to remaining calm and confident to show your true potential. Remember that you will be watched throughout the whole day, including during breaks, so be mindful of how you present yourself at all times.

You will be asked to complete five activities: a case study, a group exercise, a written task, a presentation, and a verbal reasoning test. More on each of these below.

Mercer case study

You will be presented with data and information related to the field of work to which you are applying. You are then required to read through and analyse this information before answering a set of questions related to it.

For example, if you are applying for a position focusing on the health of a workforce, you may be presented with reports on sickness and absence levels, the reasons for sickness, the company sickness policies and outcomes of interventions. You may then be asked questions that assess your ability to understand and interpret the data, and use it to make predictions or suggestions.

Mercer group exercise

The group exercise often follows on from the case study. You may be asked to join up with other candidates to discuss your answers and solutions from the case study, to decide what you would advise as a group.

This is a key test of your ability to work as a team, communicate effectively, influence your peers and speak up confidently. The assessors want to see you articulate your ideas while also listening to your peers and being respectful of others’ opinions.

Mercer written task

You will be asked to complete a series of written tasks to assess your written communication skills, time management, and ability to understand and action instructions.

You must be able to show exemplary grammar, punctuation and spelling, with one of the tests assessing this directly by asking you to identify and correct any errors within a text. Another test presents an email that you must respond to appropriately, explaining how you formulated your reply.

The written task often leads onto the presentation element of the assessment day. You will receive a bulk of written information to use a source for creating your presentation. The information will be related to your chosen field and could be in the form of reports, analyses, recommendations, policies or guidelines.

Mercer presentation

You will use the work you did in the written task to deliver a short presentation of your findings and recommendations. The presentation will be in front of Mercer HR managers who are assessing your confidence and ability to articulate your ideas.

They will follow up your presentation with intense questioning to test how you perform under pressure. Stay calm and explain your reasoning, but graciously accept any mistakes or misjudgements you might have made.

Final interview

If you are one of the successful candidates who make it through to the final stage, you will face an interview from one or two members of the senior Mercer team.

You will receive feedback and results from your assessment day tasks – your interviewers may want to discuss these with you and hear your evaluation of your performance on the day. This will lead to further questioning as your interviewees try to build up a clear picture of whether you are a good fit for Mercer.

You may be asked competency-based questions around your field of expertise and must again demonstrate a good knowledge of current Mercer news and developments within the industry.

You are advised to take extra copies of your CV with you, and to follow up after your interview by contacting each interviewer to thank them and express your enthusiasm for the role.

Practice Aptitude Tests is not associated with Mercer. We provide preparation services for Mercer psychometric tests. Our tests are not designed to be identical to any style, employer or industry. Visit to find out more.

Sample Mercer Tests question Test your knowledge!

In the grid below, one box is missing. You must work out what rules are being applied in the other boxes in order to work out which of boxes A to F will complete the grid.

Question 1
  • A
  • B
  • C
  • D
  • E
  • F

A consulting firm acquires two new clients, A and B. Client A's project is expected to generate revenues of $2 million with profit margins of 15%. Client B's project is expected to generate revenues of $5 million with profit margins of 20%. What is the total expected profit from Client A and Client B combined?

  • $1.1 million
  • $1.2 million
  • $1.3 million
  • $1.4 million

During a performance review, an analyst provides an interpretation of their client's employee satisfaction scores. They state that while overall satisfaction is high, there are significant opportunities for improvement in management communication. Which of the following inferences is most aligned with the analyst’s statement?

  • Employee satisfaction can be further improved by addressing issues unrelated to management.
  • Management communication does not significantly influence employee satisfaction.
  • There might be a positive impact on overall satisfaction if management communication is improved.
  • Employee satisfaction scores are so high that further improvements are not necessary.

An HR consultant compares the retention rates of five different departments within a company. If Department A has a 10% higher retention rate than Department B, and Department C has a 5% lower retention rate than Department B, which of the following can be inferred?

  • Department A has the highest retention rate among the five departments.
  • Department C has a retention rate that is 15% lower than Department A.
  • Department B has an average retention rate.
  • Retention rates have no relation to departmental performance.

After analyzing historical hiring data, an HR analyst identifies a hiring pattern where 20% of new hires come from internal referrals. The company wants to increase internal hires by 10% next year without changing the total number of hires. Which impact is an expected result of this strategy?

  • The total number of hires from external sources will remain the same.
  • The proportion of hires from job boards will decrease.
  • Internal referrals will decrease by 10%.
  • The number of hires from agencies will increase proportionately.

Consider a sequence of employee evaluations based on their performance ratings. If the pattern observed is as follows: Analyst, Consultant, Senior Consultant, and Principal, what is the most logical next position in progression?

  • Junior Analyst
  • Senior Analyst
  • Managing Consultant
  • Associate

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Mercer Tests Tips

1Understand the Test Structure

Familiarize yourself with the types of questions and subjects covered in the test. Knowing what to expect can greatly reduce test anxiety.

2Practice Time Management

Each section of the test is timed. Practice answering questions quickly and efficiently to ensure you complete each section within the given timeframe.

3Enjoy Free Practice

Did you know you can take practice tests for these types of assessments on Practice Aptitude Tests for free? Get a head start on your preparation now!

4Review Your Answers

Always take the time to review your answers. Practice tests can help you identify patterns in mistakes, allowing you to focus your study efforts.

5Stay Updated on Industry Knowledge

Mercer values current industry knowledge. Brush up on recent trends in the actuarial and HR consulting fields to aid your test performance.

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Mercer Tests FAQs

What are the Mercer tests?

The Mercer tests are a series of assessments designed to evaluate the aptitude, skills, and potential of candidates applying for positions within Mercer, such as actuarial and HR consulting roles. These may include numerical reasoning, verbal reasoning, and job-specific situational judgment tests.

Are the Mercer tests hard?

The difficulty of Mercer tests can vary depending on the individual’s background and skill set. They are meant to challenge applicants and identify those who are best suited for a career at Mercer. However, with thorough preparation, the tests are entirely manageable.

How do I prepare for Mercer tests?

The best way to prepare for Mercer tests is to practice as much as possible. Practice Aptitude Tests offers a wide range of practice tests that can help you familiarize yourself with the test format and question types. Regular practice can significantly improve your performance on the actual test.

How long does the recruitment process take at Mercer?

The recruitment process at Mercer can vary depending on the role and department. However, it generally involves multiple stages, including an application, aptitude tests, interviews, and possibly assessment centers. The duration can range from a few weeks to a couple of months.

What are Mercer's core values?

Mercer’s core values revolve around putting clients first, building strong relationships through respect and collaboration, and being performance-driven to ensure they deliver the best services to their clientele. They uphold integrity, operate globally, and foster diversity and inclusion.

Reviews of our Mercer tests

What our customers say about our Mercer tests

  • United Kingdom

    August 29, 2023

    The time was just enough

    I found the test engaging, answering every question properly will definitely push you towards seconds left of your time.

  • Zambia

    May 07, 2023

    Requires strong time management skills!

    Observe time and don't spend too much time on one question..if time runs out just guess your way through the test..leave no question unanswered

  • India

    December 18, 2022


    It's awesome. Requires a lot of mental maths. You are under constant pressure as the time is ticking and you want to complete it in time. Requires a lot of patience

  • India

    October 26, 2022


    The one thing I liked about the test was that the questions were related to the calculation part which helps a lot in improving our calculation skills and a couple of questions were related to general topics which also adds up.

  • Australia

    August 10, 2022

    Oh... I was not expecting this

    I was totally unprepared and had no idea what i was in for, plus i did this whilst at time I will know what awaits me

  • Zambia

    June 17, 2022

    Was a good test overall

    I liked that even though the test was simple, it required thinking carefully and quickly. The test was just based on numerical knowledge and nothing else

  • South Africa

    September 17, 2021

    Critical thinking and mathematics calculation

    The questions were a bit difficult to understand, especially since I'm in a different country so some terms were tricky.

  • United Kingdom

    September 10, 2021

    Practice on currency conversion required

    The graphs are quite difficult to read (presumably on purpose) and having to drag mouse over data points does waste time

  • India

    July 03, 2021

    Aptitude test

    Data interpretation is stuff without calculator. Needed a spreadsheet or similar tool for handling such questions.

  • Nigeria

    April 08, 2021

    I need to know how to calculate average rate and percentage rate

    I like everything about the test but the time is limited.