Logic questions on big 4 interviews - how do I practice??

Big 4 Case Interview Logic Market sizing
New answer on Mar 01, 2020
6 Answers
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Anonymous A asked on Feb 28, 2020

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Nathaniel
Expert
replied on Mar 01, 2020
McKinsey | BCG | CERN| University of Cambridge

Hello there,

Typically, the brainteasers on interviews on these firms would focus more on market sizing, such as how to calculate rubber needs for a target country, from the perspective of a tire manufacturer.

For this kinf of market sizing, practice how to start estimating - starting point can varid, from total number of citizens or households, then segmenting this number, before going to detailed number of how many cars and bikes each household have or if they have none and travel with public transportation. Also consider export.

A lot of practice is needed for different cases, but the most important thing is to get comfortable with the logical flow and reasonings.

Hope it helps.

Kind regards,
Nathan

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Luca
Expert
Content Creator
replied on Feb 28, 2020
BCG |NASA |20+ interviews with 100% success rate| 120+ students coached |GMAT expert 780/800 score

Hello.

There are some standard tools that you can use for some questions, but the only effective way is to practice and be used to model unconventional situation using your math skills.

Feel free to text me if you want some examples.

Thanks,
Luca

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Clara
Expert
Content Creator
replied on Feb 29, 2020
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Hello!

I see very very rare that you are asked one of these questions in an interview.

If you really want to be on the safe side, only by googling "brain teasers" you get dozens of lists of them to practice, including their answers. Best is to practice with friends, it´s even fun!

Good luck!

Cheers,

Clara

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Antonello
Expert
Content Creator
replied on Feb 29, 2020
McKinsey | MBA professor for consulting interviews

Hi, there are not frameworks to crack it but only problem solving and math skills. Practice will help, feel free to text me for some solved problems.

Best,
Antonello

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Francesco
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Content Creator
replied on Feb 29, 2020
#1 Coach for Sessions (3.700+) | 1.300+ 5-Star Reviews | Proven Success (www.case.tools/results) | Ex BCG | 8Y+ Coaching

Hi Anonymous,

if you are referring to brainteasers, I agree with Vlad, they are not very common in consulting interviews. You can refer to one of the books he mentioned or simply look on Google for a list of the most common ones – that's how I personally prepared. Once you have reviewed the top 50 I don’t think you can get many surprises.

Best,
Francesco

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Vlad
Expert
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replied on Feb 29, 2020
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School

Hi,

There is no dedicated part of the interview for brainteasers and to be honest, they are quite rare. Although the interviewer might want to ask you a brainteaser question either before or after the case. To prepare you simply read the 2-3 most popular books with the brainteasers (Are you smart enough to work at Google?, How would you move Mount Fuji?).

Best

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Nathaniel gave the best answer

Nathaniel

McKinsey | BCG | CERN| University of Cambridge
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