Hi there, 

These numbers are not written anywhere in an interviewer's handbook or part of their training. At most, they're guidelines. 

Basically, the interviewer is trying to assess some of your skills during the interview. They might need more or less than 20 minutes to do that. So just focus on doing the best that you can and worrying less about the time. 

Then, regarding the conclusion, 1 minute sounds about right, but a good conclusion (depending on the context of the case), could also be longer. Again, just make sure that your output is good, and then the timing matters less.

Best,

Cristian

Hi there,

Hard and fast numbers are not the way to approach this….

You need to clearly, concisely, and articulately communicate throughout the case. You need to speak in a direct manner that does not waste time. You need to navigate the case in an effective manner with “right pathway choosing” and not going down rabbit holes. You should draw the right conclusions in a reasonably fast manner.

^If you do this, you have a successful outcome.

Some “cases” might be 10 minutes. Others might be 30.

It depends on the case itself, the interviewer, the day, etc.!

Focus on my first paragraph, not some abstract 60 second rule!

This really depends on the person that interview you. Usually bus. cases takes around 30-35 min, but online or standardized casing may fall into these hard limits. 

Recommendation in any case should be quick: 1min seems correct - where we come from and what we recommend based on the analysis. If needed only - next steps. 

Good luck!

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Ahhhh, it just doesn't work like that. You are supposed to be focused and able to keep moving forward, but time management is more an issue for the interviewer than you. 

Same thing on the conclusion - no one is supposed to be there with a timer.

If your conclusion is routinely over a minute or so, you need to speed things up. The goal is to be short and sharp. To do this, you need to take good notes on your structure as you go, underline/highlight key numbers and insights on your paper and take a few seconds before stating your recommendation. A normal case is 20-30 minutes so you just won't be allowed to go further and will be pushed for a recommendation.

Hi there,

You need to be confident enough to be in control!

Don't look at this as an exam with set rules where you're the student and the interviewer is the professor. It's an eye to eye conversation and if you need some time to think, crunch numbers, etc., you say so politely and confidently.

What you can always do up front is align expectations and ask how much time you can allocated to the case. However, once you get the answer, it's all on you!

Hope this helps. Best of luck!

Moritz