Hi all, I'm currently a US sector Healthcare Analyst with McKinsey, and have worked out of the New Delhi India office for 2 years before moving here to our new Costa Rican center as we're building new teams here. Note. the procedure, test, and number of rounds differ considerably based on the position you are applying for.
I can share my interview experience with you:
1) They called 15 of us in for the joint Problem Solving Test at 8am, we all wrote in one room.
2) Based on the result, 5 out of the group were asked to leave right after the test.
3) The rest of us went on to individual cases.
Note, I don't have a traditional consulting background, so this was a big challenge for me. I managed to get ahold of some older Harvard Business Case Study manuals from a friend (who himself was an Engagement Manager with KPMG, from a top Indian B-school). These basically gave general overview tips on cases, how to build assumptions etc. I interviewed with Booz prior to this and BOMBED that interview, it was positively awful, they grilled me to death and I was not mentally prepared for it.
I can share some of the cases thrown at me by McK, note, these will vary GREATLY based on the role you apply for, but they all test your ability to analyze, develop a concise thought process, and provide reasonable assumptions for your calculations.
1) Easier one: What kind of fast food do you like? Ok, estimate the average daily sales for the KFC outlet down the road.
2) Tougher one: Estimate the average annual health insurance premiums generated for all commercial health insurance companies in India, for 2010 (this was tough and i dont think the interviewer, who subsequently became my boss, like my answer). A friend of mine who applied for the full blown consultant (Associate) position in San Francisco was asked to estimate the probability of him meeting a celebrity at an airport on a Saturday etc. He was a Haas grad.
A few points to keep in mind:
- Domain knowledge is not necessary, you can answer the above without knowing jack-all about the industry.
- In between, if you get a particularly tough interviewer, they will cut you off in mid calculation and say "ok you just entered the elevator with the CEO, give me your pitch in 2 minutes flat". That tactic is more applied to Associate and above roles. Most of my colleagues did not have this happen to them for the Analyst position, but my interviewer did throw this at me, he told me I had 20 minutes to solve the tough case with full listed assumption, but came back in about 7 minutes and asked for the summary.
If you feel its useful, I can share overview steps on how I anwered my case interview questions, though would like to inform you that they are definitely not the best way to do it, and there are always multiple approaches. They are basically testing how you think on your feet and what assumptions you come up with.
Feel free to throw questions at me. I can also share the questions the Booz consultant threw at me for the Associate, I was TOTALLY unprepared for that but can at least share the question types.
Cheers