Cases about Brain teaser

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As a consultant at Mercedes-Benz Management Consulting, you are actively shaping the future of mobility. While you are contributing to decisive projects that design the future of the world’s No.1 premium carmaker, you also develop your own career path and you have the unique possibility to build you ... As a consultant at Mercedes-Benz Management Consulting, you are actively shaping the future of mobility. While you are contributing to decisive projects that design the future of the world’s ... (Open whole case)
17.9k
Times solved
3.8
100+ Ratings
Intermediate
Difficulty
Expert case by Ian
Estimate the number of people on the internet at this exact moment in time.Clarifying information:We can assume it is 11am ESTIt is a weekdayOn the internet means on their computer or their phone====================NOTE==========================Please make sure to check the video URL solution to get ... Estimate the number of people on the internet at this exact moment in time.Clarifying information:We can assume it is 11am ESTIt is a weekdayOn the internet means on their computer or their ... (Open whole case)
600+
Times solved
3.0
< 100 Ratings
Advanced
Difficulty
Expert case by Ian
A startup company specializing in last mile delivery with drones is determined to reach $20M in revenue while also becoming profitable. The company's innovation lies in leveraging drone technology to revolutionize the logistics sector, specifically focusing on last-mile delivery, which accounts for ... A startup company specializing in last mile delivery with drones is determined to reach $20M in revenue while also becoming profitable. The company's innovation lies in leveraging drone tech ... (Open whole case)
1.8k
Times solved
5.0
< 100 Ratings
Advanced
Difficulty

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Expert case by Cristian
Assume our client is CodeWave, a large software development firm headquartered in Silicon Valley. The company has a solid reputation in the tech industry and has been in operation for over 15 years. Codewave currently employs approximately 3,000 people and has rapidly expanded in recent years.  ... Assume our client is CodeWave, a large software development firm headquartered in Silicon Valley. The company has a solid reputation in the tech industry and has been in operation for over 1 ... (Open whole case)
900+
Times solved
5.0
< 100 Ratings
Intermediate
Difficulty
Expert case by Agrim
Our client is NeuBank, a neobank in the US. A soccer stadium in Ohio is offering exclusive naming rights, and NeuBank is considering bidding for them. The client wants to understand the following:If this is a good idea?How much they should bid?How to make the deal a win-win?NOTE that this case is ve ... Our client is NeuBank, a neobank in the US. A soccer stadium in Ohio is offering exclusive naming rights, and NeuBank is considering bidding for them. The client wants to understand the foll ... (Open whole case)
1.2k
Times solved
4.8
< 100 Ratings
Intermediate
Difficulty
Expert case by Ian
Let’s say we’re working with a large Tech company (i.e. FB, Apple, Microsoft etc.). They are interested in getting into the low-code iBPMS space. This is a space where pseudo-code is used to deploy large-scale process-based IT applications rapidly (in months, not years).In particular, they’re lookin ... Let’s say we’re working with a large Tech company (i.e. FB, Apple, Microsoft etc.). They are interested in getting into the low-code iBPMS space. This is a space where pseudo-code is used to ... (Open whole case)
5.4k
Times solved
3.7
< 100 Ratings
Intermediate
Difficulty
Expert case by Ian
An entrepreneur has come to you looking to disrupt the taxi industry in NYC. They are interested in determining the number of taxis in Manhattan, in order to understand how large their fleet would need to be to compete. How would you go about determining how many taxis exist in Manhattan?If the cand ... An entrepreneur has come to you looking to disrupt the taxi industry in NYC. They are interested in determining the number of taxis in Manhattan, in order to understand how large their fleet ... (Open whole case)
5.0k
Times solved
3.6
< 100 Ratings
Intermediate
Difficulty
Expert case by Rushabh
The Government of Spain has tasked the City of Barcelona to increase their revenue generated from the City.Thus, in order to generate more revenue, the Local Government of Barcelona has engaged our firm to examine the viability of passing a new law imposing a fine on jaywalking violations.How should ... The Government of Spain has tasked the City of Barcelona to increase their revenue generated from the City.Thus, in order to generate more revenue, the Local Government of Barcelona has enga ... (Open whole case)
1.2k
Times solved
4.0
< 100 Ratings
Advanced
Difficulty
Expert case by Clara
Your client is  the CEO of a coffin manufacturing company based in Geneva, Switzerland (Europe). The company has existed with little changes to the business model for three generations, manufacturing high-quality, hand-crafted coffins, with a highly skilled and specialized labor force ... Your client is  the CEO of a coffin manufacturing company based in Geneva, Switzerland (Europe). The company has existed with little changes to the business model for three ge ... (Open whole case)
2.1k
Times solved
4.5
< 100 Ratings
Advanced
Difficulty
Expert case by Clara
In an annual reunion with your MBA colleagues, one of them shares with you an idea of a new venture they have been working on: affordable baby strollers. They have deep experience in puericulture and childcare, and know there is a stable business to tackle.Given your experience in consulting, they a ... In an annual reunion with your MBA colleagues, one of them shares with you an idea of a new venture they have been working on: affordable baby strollers. They have deep experience in puericu ... (Open whole case)
5.3k
Times solved
3.0
< 100 Ratings
Intermediate
Difficulty
Expert case by Antonello
A wealthy client has recently bought an island in the Caribbean. She has engaged us to identify possible uses for her new island. A wealthy client has recently bought an island in the Caribbean. She has engaged us to identify possible uses for her new island. (Open whole case)
16.2k
Times solved
4.6
300+ Ratings
Intermediate
Difficulty
Expert case by Giulia
Our client is the government of an imaginary country which is suffering from strong protests and riots by its own population. The client would like to understand the reason for these protests. In a second step, the client wants you to make suggestions for improvement to end these protests. ... Our client is the government of an imaginary country which is suffering from strong protests and riots by its own population. The client would like to understand the reason for the ... (Open whole case)
9.3k
Times solved
4.5
200+ Ratings
Advanced
Difficulty
Expert case by Clara
Your client is the CEO of Heathrow airport (London), the busiest airport in Europe in terms of commercial traffic.Due to COVID-19, the airport's operations and hence, revenue streams, have been severely affected.The CEO asks for your help with the preparation of the upcoming Steerco, focused on:“How ... Your client is the CEO of Heathrow airport (London), the busiest airport in Europe in terms of commercial traffic.Due to COVID-19, the airport's operations and hence, revenue streams, have b ... (Open whole case)
9.3k
Times solved
4.4
300+ Ratings
Intermediate
Difficulty
Expert case by Thomas
Your friend is an aspiring artist and is asking for your consulting advise on a problem that he has been struggling with. Your friend (the artist) is trying to understand how many hours people listen to the number one music streaming platform (the one with the green logo) in total and on average per ... Your friend is an aspiring artist and is asking for your consulting advise on a problem that he has been struggling with. Your friend (the artist) is trying to understand how many hours peop ... (Open whole case)
8.0k
Times solved
4.4
100+ Ratings
Beginner
Difficulty
Expert case by Vai
Johnny Depp, now 56 years old, has started to feel that his acting career is about to get over. His net worth crossed over $650 million at the peak of his career but has since dwindled, amid lawsuits and lifestyle expenses. As such, he thinks that his current wealth might not be enough for ... Johnny Depp, now 56 years old, has started to feel that his acting career is about to get over. His net worth crossed over $650 million at the peak of his career but has since dwin ... (Open whole case)
2.4k
Times solved
4.3
< 100 Ratings
Intermediate
Difficulty
15 results

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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.

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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.

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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.

What are expert cases?

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.

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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.
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