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There's a reference to the classic Heard on the Street book but you should also check out Zhou's green book, which consists a guide on cracking the type of interview questions Google used back in the mid 2000s/early 2010s (how many ping pong balls can fit in an airplane), with much more demanding problems though:

    A Practical Guide To Quantitative Finance Interviews,  Xinfeng Zhou
https://www.amazon.com/Practical-Guide-Quantitative-Finance-...


> a guide on cracking the type of interview questions Google used back in the mid 2000s/early 2010s (how many ping pong balls can fit in an airplane)

Google never used that type of question, most certainly not in the early 2010s. That genre of question infamously came from Microsoft, much earlier than that.


Isn't there a large gap between the types of Fermi estimation problems you might get in a regular job interview (e.g. Microsoft PgM or McKinsey Associate) and the types of probability/statistical problems you might get in a quantitative finance interview?


Some quant jobs interview both. The fermi estimation problems are much less emphasized, but they're there nonetheless.


Did Google really ask questions like these it is it an urban myth? Supposedly Microsoft did (why is a manhole cover round) but that was supposedly stopped in the early 90s




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