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Market sizing questions are very common in consulting interviews. This video will provide you with a market sizing framework to tackle any market sizing case or question. We'll go through several examples of market sizing practice questions and provide answers to them.

You’ve probably heard of one of the most famous consulting case interview market sizing questions before: how many golf balls can fit in a Boeing 737?

At first glance, this might seem like a ridiculous question. Why would a consulting interviewer care whether or not you can estimate the number of golf balls that can fit in an airplane? What does this have anything to do with consulting, business, or one’s intelligence?

At the end of the day, for market sizing and estimation questions in consulting interviews, interviewers don’t care about the exact answer you give. Whether your answer is correct or off by orders of magnitude, interviewers use these types of questions to assess three things. Interviewers want to see you structure an approach to the problem, execute on the math correctly, and clearly communicate and walk them through your work.