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Two very different things get called "case interviews"
Before any prep makes sense, work out which situation you are actually facing. A consulting-style case interview and an academic case discussion look similar from the outside — someone hands you a business situation and watches how you think — but they reward different behaviour. Switch the style and even a strong student looks lost. Pick your setting below:
What it is. A live, roughly 20 to 40 minute conversation with a case at the centre: a company situation, a decision, and a lot of silence for you to structure. Nobody expects a perfect answer; they watch how you break the problem down and how you react to a nudge like "are you sure that's the biggest driver?"
What it rewards. A visible structure, calm arithmetic, and saying "so what that means is…" out loud. Being corrected gracefully scores better than never being corrected.
What it is. Your professor or panel asks you to walk through a case you have studied — often one you wrote about. The questions are narrower: why this framework, what evidence supports that claim, what would change your conclusion?
What it rewards. Knowing your own analysis cold. Every claim you wrote must be defensible with the case facts, and the fastest way to fail is citing a number that is not in the case file. If you need your written analysis rebuilt before a viva, our case study analysis service can tighten it first.
What it is. A case file, a deadline of a few hours or a weekend, and a written deliverable: usually a one-page recommendation or a short slide deck.
What it rewards. Structure and restraint. One page forces choices, and graders notice when you chose well. This is the format where written help is most straightforward — see the take-home section below.
The five question types inside a case interview
Interview cases are assembled from a small set of building blocks, and once you can name the block, half the panic disappears. The table below describes the five types that come up most often. None of it is secret knowledge — it is how these interviews are commonly described by the schools and firms that run them.
| Question type | What it really tests | How to open your answer |
|---|---|---|
| Market sizing | Whether you can build an estimate from pieces and state assumptions without apologising for them | "Let me split this into segments and estimate each one" — then do exactly that |
| Profitability | Whether you separate revenue from cost before diving into either | "Profit is revenue minus cost, so let me check both sides in turn" |
| Growth or entry decision | Whether you weigh an opportunity against the risks instead of listing pros and cons | "What would have to be true for this to work?" — then test each condition |
| Brainstorming | Whether your ideas come in groups rather than a random stream | "Two buckets come to mind: customer-side and operations-side" — then fill them |
| Personal fit, wrapped in a case | Whether you can defend a judgement honestly when pushed | Answer the business question first, then connect it to a decision you have actually made |
Notice the pattern in the third column: every strong opening names a structure in one sentence. That habit is worth more than any framework list, and it transfers straight into the written answers our case study questions and answers service helps with.
Practice prompts to rehearse out loud
Reading about interviews does almost nothing; saying answers out loud does. The six prompts below are illustrative — generic businesses invented for practice, not real companies. Tap a card to flip it and see how a structured answer starts. Set a timer for two minutes per prompt and answer as if someone is sitting across from you.
A campus coffee kiosk's revenue is flat even though footfall is up. Where do you look first?
Open with:
Revenue is price times volume. Footfall is up, so something inside the basket is shrinking — check average ticket, mix and payment method before blaming the market.
A regional airline wants to add a fifth city to its network. What would convince you it's a good idea?
Open with:
"What would have to be true?" Demand on the route, margin after fuel, aircraft availability, and a guess at the incumbent's response. Test each, then recommend.
A study app has strong downloads and weak daily use. Diagnose it.
Open with:
Split the funnel: acquisition is fine, so the leak is activation or retention. Ask for week-one return rates before proposing any feature.
Sales are up 12% but profit is down. How is that possible?
Open with:
Growth can buy itself: discounting, a shift to lower-margin products, or rising costs that scale with volume. Ask which mix changed before assuming fraud or crisis.
Should a bookstore chain launch a monthly subscription box?
Open with:
Customer math first: what would a subscriber pay, what does the box cost to fill and ship, and would subscribers have spent that money anyway? Cannibalisation decides this case.
A factory's overtime hours doubled this year. Is that a problem?
Open with:
It depends on why: demand growth makes overtime a good sign; process breakdown makes it a cost leak. Ask for output per shift before judging.
Rehearse the same prompt twice — once on day one, once three days later. The second pass is where structure starts to feel like yours instead of borrowed. For more prompts built around business courses, the business case study preparation guide pairs well with this page.
The four-move answer frame
Whatever the question type, the moves underneath stay the same. Four of them, in order:
Clarify
One or two questions, not five. Which costs, which market, over what period. Then restate the objective in your own words so the interviewer can correct you cheaply.
Structure
Say the structure before using it: "three angles — demand, cost, competition." A structure spoken aloud is worth more than a perfect one kept in your head.
Work it
Move through the structure, do the arithmetic out loud, and park tangents visibly ("that matters, but it's bucket two"). Silence plus scribbling beats muttering.
Land it
Finish with an answer, not a shrug: what you would do, the biggest risk, and what you would check next. Interviewers remember the last thirty seconds.
Check your interview instincts
Three quick situations. Pick the response you would actually give — the feedback explains why one option wins, so a wrong pick is the useful outcome here.
1. An interviewer opens with: "A mid-size gym chain's membership is falling." Your first move?
The strongest instinct is B: cheap clarification first. Frameworks exist to organise the case once you understand it, not before.
2. You get a market-sizing question about umbrellas sold in your city each year. The best structure is…
The strongest instinct is A: segmentation is the whole point. A single average hides the tourists, the commuters and the lost-umbrella repeaters.
3. Mid-answer, you realise your first structure missed something important. The strongest recovery is…
The strongest instinct is B: interviewers routinely inject complications on purpose. Adapting out loud is the skill being tested.
Answer all three to see your instincts score.
When the interview includes a written take-home
Plenty of programs now attach a written component: a case file, a deadline, and a one-to-three page recommendation. This is the part where a writing service can help directly and honestly. What we do:
- Practice take-homes. We draft a practice case in your industry area, you answer it in the real time limit, and we mark the structure against the criteria take-home graders typically apply: clarity of recommendation, use of evidence, and honest treatment of risks.
- Model outlines. For the actual assignment or exercise, we can produce a model outline showing how a strong one-pager is organised, which you then write yourself.
- Feedback passes. Send your draft and get it read the way a grader would read it — first the recommendation, then the evidence behind it.
What we will not do is pretend a memorised script will carry you through a live round. Interviewers follow up twice before you finish your first answer, and only understanding survives follow-ups. If your worry is the written analysis behind the discussion, our question-and-answer service and the wider business case studies services cover that ground.
Interview coming up and want a sparring partner on paper?
Tell us the program, the format and your timeline. We will scope practice cases, model outlines or a take-home review — and you get a free price quote before deciding anything.
Frequently asked questions
Is this the same as consulting case interview coaching?
Partly. The question types, the answer frame and the practice prompts overlap heavily, and this page gives you all three. What we are not is a live coaching firm that runs mock interviews on video calls. Our help is written: practice cases, model outlines and feedback on drafts.
My interview is tomorrow. What can realistically be done?
Learn the four-move frame, read the question-type table once, and rehearse two prompts out loud with a timer. That is a genuine improvement for one evening, though no honest service can promise to compress months of practice into hours.
Do you write answers I can memorise?
No, and we would argue against it even if we could. Interviewers probe follow-ups fast, and a memorised answer collapses at the second question. Frames and model outlines, rehearsed until they are yours, hold up better and are what we produce.
What if the case interview includes a written exercise?
Then the written-exercise section above is the relevant one: practice take-homes, model outlines and a grader-style feedback pass on your draft. Written formats are where a writing service adds the most value, because the deliverable is a document rather than a performance.
Can you help with a group case discussion?
Yes. We prepare an opening statement, a bank of questions worth asking, and two or three points positioned so only you make them. The goal is to contribute visibly without talking over anyone — graders watch for that balance.
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