Paul Akin is the founder of Quick Prep and the author of its case interview, fit interview and sector preparation material. He works with candidates preparing for management consulting interviews at McKinsey, BCG, Bain and the wider firm market, and writes the worked case library the site is built around.
Worked cases on this site are written as practice exercises, and their figures are
constructed for that purpose rather than reported from client engagements. Where a
page carries an illustrative financial example, it says so on the page. Sector primers
cite their external sources inline so a reader can check the underlying figure rather
than take it on the byline.
Where an assessment format or a recruiting process is described, the firm's own
careers material is treated as authoritative and is linked, because these change
between intakes. Pages carry the date they were last edited, and that date reflects a
real revision rather than a scheduled refresh.
The about page covers what Quick Prep does and what it
deliberately does not claim.
Consulting recruiting in Canada runs on the North American calendar but through a smaller market, where office choice, language and work authorisation matter more than they do elsewhere.
Consulting digital assessments are the online screens firms run before the interview rounds — behavioural game batteries such as Pymetrics, and aptitude and situational tests such as SOVA.
BCG Casey is a chatbot-led online case that BCG uses to screen candidates, running a compressed case conversation with multiple-choice, chart and written-response questions.
McKinsey Solve is the digital assessment McKinsey uses to screen candidates before the case interview rounds, built around scenario games rather than questions with recallable answers.
A market sizing case asks you to estimate the size of a market from a handful of known facts, building the number from a stated structure rather than recalling it.
A full practice case with the interviewer's prompt, the data released on request, the arithmetic and a model recommendation — an airline consortium with a budget and a perception problem.
Fit interview questions fall into four recurring families — motivation, experience, self-assessment and your questions for the interviewer — and each rewards a different kind of answer.
An M&A case asks whether an acquisition creates value at the price offered, which turns on four questions — strategic rationale, target quality, valuation and integration.
The Personal Experience Interview is McKinsey's structured behavioural round, in which one story is probed in depth across a single dimension rather than several stories being sampled briefly.
Four market entry practice prompts with worked solutions, covering the arithmetic, the exhibit reading and the recommendation each one is designed to test.
Four pricing practice prompts with full arithmetic, covering the break-even volume behind a price change, willingness to pay, tiering and the response of a competitor.
Strategy consulting advises on which direction a business should take; management consulting covers the broader work of making an organisation function, including implementation.
Three supply chain practice prompts with worked solutions, covering inventory and service trade-offs, network design arithmetic and the cost of a single sourcing decision.
The McKinsey 7S Framework examines how seven parts of an organization fit together. Learn the elements, limitations and a practical interview application.
A behavioural interview in consulting asks you to describe things you have actually done, on the premise that past behaviour predicts future behaviour better than stated intent does.
Case maths is the mental arithmetic a case interview requires — estimation, percentages, growth rates and simple financial relationships, done out loud and without a calculator.
Retail cases run on a small set of metrics — sales per square foot, basket size, conversion, inventory turns — and three practice prompts show how each one carries an answer.
A case interview opening is the first two to three minutes in which you restate the problem, confirm the objective, ask clarifying questions and present a structure.
Business intuition in a case interview is calibrated judgment — knowing what a plausible margin, market size or cost structure looks like, so you notice when an answer is wrong.