Hello! I would follow these steps: Population calculation: if it´s not given, stimation based on your knowledge of other european cities. Different evacuation ways: cars, trains, buses, etc.... (more)

# All questions tagged estimation - Consulting Q&A - PrepLounge.com

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Hi, I would split Spain into 3 buckets and allocate % of the area: Urban areas Rural areas National parks / uninhabited areas 1. Urban - you take an average size of the block and fin... (more)

Hi, I would split into buckets and try to understand a trend in each of them: Demand Lack of internal resources (lack of researched volumes, extraction capabilities, higher costs) Privat... (more)

It seems to be a standard market sizing that you can tackle starting from total american population, as suggested by others. If you want to impress you interviewer, once that you have done your est... (more)

I think this particular question is not designed to reach an accurate result. There are simply too many assumptions involved, and their errors add up. Instead, the question tests whether the candidate... (more)

Hi, It's easier to: Segment New York into blocks using the number of streets and avenues. Calculate separately the area of the parks Assume a certain number of trees per block and separat... (more)

Hi Mirko, Below is one potential approach to the solution : - Number of trains per hour (assume this is based on frequency of service), you can also adjust for time of day (rush hour vs othe... (more)

Hi, Define the time it takes for a single person to pay Define max number of people paying in a singly cashier line per shift Multiply by the average utilization of the cashier line Multip... (more)

1. You can use 5m. With all the assumptions you are going to make, this first approximation is not important. I recommend asking the interviewer something like "Can I use 5m to facilitate the calculat... (more)

How would you approach to calculate the number of people at a busy tube station at a given hour?... (more)

Hi Anonym, there are many different ways to calculate that. Depending on whether the question is used as a whole case or is only part of a case, you can solve it in different levels of detail. A... (more)

To add to Deepti's answer -Saudi Araba is a huge tourist destnation so be sure to factor that into your calculations as well

I got this question during an interview for a non-consulting job before I learned at all about struc... (more)

How would you go about this question?

I would approach this as a strategic invesment decision as follows: The maximum price I would pay for the bridge = Incremental yearly profit generated by the bridge x the break even period you have... (more)

Got a similar case at McKinsey some time ago - I actually asked the same question here : https://www.preplounge.com/en/consulting-forum/atypical-case-4501

Hi Anonym A, this is one of the more difficult estimation questions, because you have only few reference points. I would first determine how many international companies there are in Dubai and h... (more)

Hi, I would go with 1) Number of people in the world 7.5B 2) Segment them into (non flyers ~85%, occasional flyers 14%, frequent flyers 1%) 3) Multiply with number of flights (no flyers,... (more)

Hi, it really depends. If your assumptions are a little of on each step of the estimations you can get quickly to 5-10X the true market size. I think you would only fail if you made completely unlo... (more)

Hi, You should make the following assumptions: Peak, non-peak hours and total operational hours # of planes landing and taking off during peaks and non-peaks Max # of passengers per plane... (more)