CONSULTANTS: How much practice did it take for you to pass your case interview?

Awhile ago, I went to a Boston Consulting Networking event. I asked a consultant how did he prepare. He said he had done at least 100 prep interview cases and also read through another 100!

What about you? Or any other tips on how you prepped for the case interview?

 
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The guys who do 100+ cases are usually those who don't get in or if they do get in, are the ones that need to read email 10 times to make any sense of them. Over preparing at it's finest. I did around 20 and that worked well enough for me. The cases are mainly for structure and how you think, the rest is your personal business knowledge. You can do 100 cases but if you advise a pork company to expand into Saudi Arabia you'll get dinged from everyone.

 

Actually heard a story about someone getting dinged from an MBB middle east office because in a market sizing case, they did not build in the assumption that half the market (i.e. women) could not work in the particular market.

Might be an exaggerated story though, because many women do now work across industries, even in Saudi Arabia.

Gimme the loot
 

This is highly dependent on you and the quality of your preparation. Most important is to make sure you prepare the right way and internalize good habits early so you don't have to rewrite them later (learning via current/past consultants, past candidates or material like Victor Cheng's, at least to start and sprinkled throughout your prep).

I've met people who've done anywhere between 25 and 150 cases to get offers [from MBB]. Another BCG consultant said she'd done about 40-50 in a workshop call, stating that's around the figure MBB offerees do on average. I myself received about 80 and correspondingly gave about 80, the first ~30 or 40 of which weren't practiced properly, imparting habits I had to unwrite.

 

I'm of the opinion that you should try to be fairly natural in the interview room. That way you are guaranteed to come off as "human" and to never get stuck in a poor framework. With that being said, I probably only practiced around 8-10 ish live cases myself but proctored 60 or so for other people which helped. This doesn't work for everyone but I'd say if you get it and they are feeling good, there isn't a ton of benefit to continuing to practice just for kicks and it may even make you seem robotic.

 

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