Cases, also known as case studies, are business problems that a candidate is presented with during a case interview at a management consultancy. The challenge is to solve it under pressure and in a structured way.
Practice With Cases on Various Topics
Basic Merger Model Interview Questions Set
This question set helps you build a solid foundation in M&A modeling by covering the key drivers of accretion and dilution, deal structuring, and synergy analysis. You’ll review the mechanics of a basic merger model, explore how different financing methods impact EPS, and understand strategic considerations like purchase price allocation and debt capacity.
You should expect to spend 30–40 minutes on the full set. Use the model answers to test your understanding, identify gaps, and sharpen your ability to communicate M&A concepts clearly and confidently.
Stripe IPO: Advanced Valuation Interview Questions Set
This set of questions focuses on IPO valuation using Stripe as an example. It tests your understanding of core valuation methods and your ability to apply them in realistic, interview-style scenarios.
Set aside 30–35 minutes for the whole set. Each question includes a model answer to check your approach and improve your technicals.
Basic Valuation Interview Questions Set
This set of questions is designed to help you prepare for the most common valuation topics in finance interviews. It covers the basics (like DCF, comparables, and multiples) but also includes practical scenarios that test whether you can apply these concepts in context.
Set aside about 30–35 minutes to go through everything. For each question, you’ll find a clear model answer to check your reasoning and deepen your technical knowledge.
Practice Cases with Peers That Are Currently Looking for Interview Partners.
Intermediate Valuation Interview Questions Set
This question set helps you go beyond the basics of valuation by comparing key methodologies and exploring when and how to use each one effectively. You’ll review core approaches like DCF, comparables, and precedent transactions, and build on that with LBO analysis, liquidation valuation, and industry-specific multiples.
You should expect to spend 30–40 minutes on the full set. Use the model answers to check your reasoning and refine your technical knowledge.
LBO Interview Questions Set
This set of questions is designed to help you master key concepts in Leveraged Buyouts (LBOs). The difficulty progresses from foundational questions about the mechanics of an LBO and the role of leverage, to more advanced concepts like financial statement adjustments, calculating debt capacity, and determining coverage ratios.
In total, walking through this set in an interview would take approximately 35 minutes, making up around 70% of a typical 45-minute interview. Below, you’ll find model answers for each question, along with tips for the interviewer on what to look for in candidate responses.
Basic Accounting Interview Questions Set
This set of questions is designed to help you master key concepts in accounting and financial analysis. The difficulty progresses from foundational questions about the Income Statement, Working Capital, and Deferred Revenue to more complex concepts like depreciation, accrual vs. cash-based accounting, and their impact on financial statements.
In total, walking through this set in an interview would take approximately 30 minutes, making up around 60% of a typical 45-minute interview. Below, you’ll find model answers for each question, along with tips for the interviewer on what to look for in candidate responses.
Enterprise & Equity Value Interview Questions Set
This set of questions is designed to help you master the fundamentals of Enterprise Value (EV) and Equity Value. The questions start with basic concepts, such as the difference between EV and Equity Value, and progress to key topics like calculating EV, the impact of diluted shares, and understanding the Treasury Stock Method.
In total, walking through this set in an interview would take approximately 30 minutes, making up around 60% of a typical 45-minute interview. Below, you’ll find model answers for each question, along with tips for the interviewer on what to look for in candidate responses.
M&A Interview Questions Set
This set of questions is designed to help you master the fundamentals of mergers and acquisitions (M&A). The questions start with basic concepts, such as the difference between mergers and acquisitions, and progress to key topics like synergies, accretive and dilutive deals, and the merger model.
In total, walking through this set in an interview would take approximately 30 minutes, making up around 60% of a typical 45-minute interview. Below, you’ll find model answers for each question, along with tips for the interviewer on what to look for in candidate responses.
Intermediate Valuation & DCF Interview Questions Set
Thisintermediate-level question set covers key concepts in valuation, with a particular focus on the Discounted Cash Flow (DCF) method. You'll review the main valuation approaches, then work through the full DCF process – from calculating free cash flow to understanding discount rates, terminal value, and capital structure effects.
Plan for about 30–35 minutes to complete the set. Model answers are included to help you check your logic and technical knowledge.
Intermediate Accounting Interview Questions Set
This set of questions is designed to help you master the core concepts around the three financial statements. The difficulty ranges from beginner to advanced, progressing from foundational questions to a multi-step scenario that tests your understanding of capital expenditures, debt financing, depreciation, interest, and asset write-downs.
In total, walking through this set in an interview would take approximately 20 minutes, making up around 40% of a typical 45-minute interview. Below, you’ll find model answers for each question, including tips for the interviewer on what to look for in candidate answers.
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Acquiring a vineyard in the Piedmont region (Italy)
Your client, a private equity fund, is considering entry into the wine business through the acquisition of a vineyard called “Piumarolo” in Italy's renowned Piedmont region. Since this marks the fund's initial foray into this specific sector, they have engaged our team to conduct a preliminary market analysis and determine the feasibility of this prospective transaction.
Fast Food Pricing
Our client is a global fast-food restaurant that offers a wide range of breakfast and rest of day products including burgers, salads, fries, and beverages, and offers combo bundles. Over the last ~5 years in the US, our client has seen a relatively flat guest count, but a decline in profitability.
They have launched several
large national advertising campaigns focused on highlighting their "value" products which have not turned around profits the way they had hoped. The head of the US business has asked us to help him understand why gross margin is decreasing, and specifically to take a look at his menu's pricing.
- Is there an issue with the menu pricing structure? If so, what would you recommend to restructure the pricing?
- What is the overall implications to volume and gross margin with a revised pricing structure?
Nearshoring - Opportunity study and Business case
Your client is an international Corporate & Investment Bank (CIB). It is France based and has already expanded to Poland (Warsaw), Asia and Americas. Your client now wants to look into the development of the existing hub in Warsaw and is contacting you to help him assess this option. How would you help him?
Powered Wheelchairs
We have been hired by the CEO of Comfort Chairs, a company that manufactures complex powered wheelchairs. Comfort Chairs has headquarters in Sweden with manufacturing in Sweden and sales all over Europe. The company enjoys a strong market position and is known for being a pioneer in its industry. It was recently acquired by a leading global private equity firm that is interested in driving the international growth of Comfort Chairs. Especially, the US market looks very interesting.
The CEO has hired you to help him with two things:
1. Determine the size and the growth of the US market for complex powered wheelchairs.
2. Analyze whether entering the US market is attractive.
McKinsey Case: Digital & Vegan Restaurant Franchise
Our client is a European venture capital firm. They are potentially interested in investing into a new restaurant franchise player from Austria, called “VegDigi”. VegDigi has just 3 corporate restaurants in Vienna and no franchisees, yet, but their business model is considered innovative for a restaurant industry, and is based on 3 pillars:
- Proprietary IT system – VegDigi’s team has developed their own IT system (which manages all restaurant processes – from cashier desk and employee schedules to inventory management and delivery).
- Innovative vegan menu – VegDigi offers fresh, whole-foods vegan menu, which differentiates itself from the rest of the fast food offering in taste and quality. VegDigi puts a lot of focus on its foods being healthy.
- Transparent business practices and processes – VegDigi prouds itself to be a transparent business, meaning they publish all their data and talk about their success and failures openly online.
Our client has engaged us to help them to determine whether or not to make an investment into the VegDigi.
PE Portfolio Strategy
We are a private equity firm operating primarily in the automotive industry. We would like you to figure out whether we should increase our portfolio in the sensor market or not.
We would like you to do a profit/margin growth potential analysis and tell us how we can add value to this company given the other companies in our portfolio.
GamingHub
Our client, GamingHub, is a large diversified entertainment corporation that received a request to approve a $200 m capital allocation from its video game manufacturing division. The division wants to triple the capacity.
The client hired us to help him decide if he should approve this capital request and have asked you what critical issues are to be looked into to decide if the division's market is attractive enough to expand.
VISO
Your client is a big bank that issues credit cards with a €100 annual fee. Recently, a supermarket entered the credit card business. The supermarket’s credit cards do NOT have an annual fee. Your client wants to know how they should react to this new competitor.
Travel Destination
Your client is the government of a region in southern Spain. Situated in this region are the country’s main tourist locations, mostly beaches.
The government is not satisfied with the revenues of the tourism sector. They have contacted our company to find a solution for this problem.
Bookl
Your client, Bookl, is a publishing company with stable sales in terms of both volume and price.
Its distribution warehouse is reaching maximum capacity. This has lowered its service quality.
The head of Bookl’s distribution department wants to extend the warehouse. The extension will cost $15 m and will NOT increase the company’s revenues.
The CEO wants your company to determine whether the investment is necessary.
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Frequently Asked Questions
We are happy to answer the most frequently asked questions.
Consulting interviews are among the most competitive and difficult job interviews that exist. Interviewers use cases as an indicator to test whether you have what it takes to become a successful consultant. In order to pass, you need to ace the case interview part. And in order to ace the case interview part, you need to be well-prepared. Thus, practicing cases is one of the most important aspects of interview preparation in consulting. During different rounds of interviews you will have to solve cases again and again to prove your structured and analytical thinking as well as your communication skills.
You can practice cases on your own and go through them to get a first feeling for the structure. Afterwards, you should go into a real interview environment and practice cases with other members on the platform. You will find more than 50 mock-interview requests on the Meeting Board every day, which you can easily accept. If there is nothing suitable on the Meeting Board, you can also use the Candidate Listing. Here you can find active members on the platform and send them a direct meeting request. If you want to take your case practice to the next level, we recommend you to schedule coaching sessions with our coaches who have many years of experience in helping candidates receive their dream job offer.
In an interviewer-led case interview, the interviewer leads through the conversation. This means that the interviewer asks specific questions and also controls the time you have to analyze and answer different questions and therefore the depth of your analysis. In contrast, the candidate-led style (which is more common) is about you taking the initiative as a candidate. The initial problem is given to you by your interviewer. Afterwards, you have the freedom to structure the case according to your ideas and to ask questions proactively in order to find a solution to the problem.
Real cases in the PrepLounge Case Library are cases that were submitted by management consultancies and have been treated as such within the company. They were made available from the real interview process. In this way, you can gain deep insights into the requirements of the case interview with the respective top consultancies (e.g. Bain & Company, Roland Berger, Deloitte, Oliver Wyman). We have marked these cases with the corresponding company logo.
Expert cases were created by our PrepLounge coaches and either contain real problems that the experts have already dealt with in their lives as consultants or cases from actual consulting interviews they took part in. They offer you an optimal preparation through the different subjects, levels of difficulty and styles. And the best thing is: If you have questions about the cases, you can ask them directly to the authors.
Video case solutions are cases in which we provide you with a solution that includes a YouTube video. With this we want to help you to understand case solutions even better.
Every member has the possibility to rate a case and leave feedback on the case. This gives you the opportunity to call up a ranking and solve the cases that are particularly popular in the community. It also gives us the opportunity to continuously improve our cases in order to provide you with the best possible practice material.
Which cases are most interesting for you depends on your personal preference and your level of knowledge. If you are just starting with the case interview preparation, beginner cases are probably the most interesting ones for you. You also have the possibility to filter by different categories, such as personal fit, market analysis or brain teaser and many more, in order to address exactly the topics that are most relevant for your application.
Practice Case Interviews - Browse Our Extensive Case Library
Invite other candidates for a meeting to crack the case interactively or solve it on your own. If you like to check your case approach just have a look at the given sample solution.
A Vast Selection of Management Consulting Cases
Our selection of case studies mirror the wide variety in real case interviews. Thus, you can solve challenging problems around market sizing, market-entry, pricing, or operations strategy. Moreover, all provided cases are marked with a level of difficulty and the respective case style. This will allow you to filter for interviewer-led (as used by McKinsey) and candidate-led cases. In addition, some of our corporate partners granted some great original cases that have been used in real interviews. Check them out to get some authentic insights about the real application process of top firms like Bain, Roland Berger, and many more. These cases are clearly indicated by the firm's logo.