McKinsey PST is a preliminary test before 1st round which they use to determine a candidate's analytical/quantitative ability (I think only North American offices do not require it, I know people taking it for European/Asian offices)
You are compared to peers taking the same test
From my experience at least, if say 50 people take this, only 10 people get invited to first round, then 5 people continue to second round, and 3 people to 3rd round, and 1~2 offers are made (this is a wild guesstimate from me and friends going through the interviews and it depends on the office)
https://www.scribd.com/doc/12508404/McKi ... ctice-Testhttps://www.mckinsey.com/locations/telav ... sample.pdfIts impossible (almost) to get 100% on it, but on the real one I probably got around 3-4 wrong, and its harder than the practice
These links do not work anymore. Thank you though!