McKinsey & Company - interview guide

McKinsey interview questions - a complete guide

In a McKinsey interview, solving the case and the Personal Experience Interview (PEI) matter equally. Here is preparation for both.

Language:EnglishHinglish

About McKinsey & Company

McKinsey & Company is the world's best-known management consulting firm - advising large companies and governments on strategy and operations. In India, alongside client-facing offices, it has a large knowledge centre in Gurugram with roles such as Knowledge Analyst.

This guide covers 12 McKinsey interview questions with answers - what each question checks and how to answer it - plus the McKinsey interview process, round by round, a 7-day preparation plan for freshers, tips and the mistakes to avoid.

McKinsey & Company hiring process

  1. Resume screen

    Academics, leadership and achievements.

  2. McKinsey Solve

    A game-like digital assessment - making decisions from data.

  3. Interviews (2 rounds)

    A case and a PEI in each interview. Reports say the whole process takes a few weeks.

  4. Knowledge Analyst (separate)

    Reported: a resume screen, an initial screen and a research exercise.

McKinsey does not publish its India fresher interview process in detail (as of our check). This is based on candidate reports - many of them for experienced roles, so the fresher process can differ. Confirm with the recruiter.

Sources (checked 16 October 2026): McKinsey Careers. Hiring processes change - read the official notice before you apply.

McKinsey & Company interview questions and answers

Case interview

In a case, your structure and way of thinking count for more than the right answer.

  1. 1.An Indian tea brand's profits have fallen for 3 years - why?

    What they're checking
    A classic profitability case.
    How to answer
    Profit = revenue - cost. Break revenue into price x volume (in which channel/region did it fall), and cost into fixed and variable. Ask for data for each branch, state a hypothesis, and end with a recommendation.
    Example answer
    “I would first check whether the fall comes from revenue or cost. If volume fell, has a competitor launched a cheaper premium tea? If cost rose, is it the price of tea leaves or transport? Could you share the revenue and cost breakdown for the last 3 years?”

  2. 2.Market sizing: how many cricket bats are sold in India in a year?

    What they're checking
    Structured estimation.
    How to answer
    People who play (age group, city/village) x how often they buy a new bat x the share who buy - or start from households. State every assumption and keep round numbers. A sanity check at the end.

  3. 3.Case math: revenue is 200 crore and margin goes from 12% to 15% - how much does profit rise?

    What they're checking
    Fast, correct maths.
    How to answer
    24 crore before, 30 crore after - 6 crore (25%) more. Keep stating units and say the 'so what'.

  4. 4.Look at a chart/exhibit and give 2 insights.

    What they're checking
    Speed in reading data.
    How to answer
    Read the title and axes first, then the biggest trend or outlier, and how it connects to the case question. Don't just read numbers - say what they mean.

  5. 5.What is a hypothesis-driven approach?

    What they're checking
    McKinsey's way of thinking.
    How to answer
    Start with a likely answer (hypothesis), ask for the data to test it, and change it if wrong - instead of analysing everything.

  6. 6.What does MECE mean?

    What they're checking
    The language of structure.
    How to answer
    Mutually Exclusive, Collectively Exhaustive - the parts don't overlap and together cover everything. Like revenue = price x volume.

  7. 7.How would you give the CEO a 30-second recommendation at the end of a case?

    What they're checking
    Synthesis.
    How to answer
    The answer first (what to do), then 2-3 reasons with data, then risks and next steps. A decision, not a recap.

  8. 8.How would you recover if you went down the wrong path in a case?

    What they're checking
    Composure.
    How to answer
    Pick up the interviewer's hint, accept that new data changes the hypothesis, and come back to the structure. Don't show panic.

Personal Experience Interview (PEI)

The PEI asks deep questions about a single story. Reports mention themes such as personal impact, entrepreneurial drive, inclusive leadership and courageous change.

  1. 9.When did you win people over to an idea they were against at first?

    What they're checking
    Personal impact / inclusive leadership.
    How to answer
    One story, in detail: who they were, what their concern was, how you listened to them, what changed and the result. What you said yourself - 'I', not 'we'.

  2. 10.Tell me about a hard goal you achieved with few resources.

    What they're checking
    Entrepreneurial drive.
    How to answer
    What the goal was, the obstacles, what you did differently, and a measurable result. The interviewer will ask 'and then?' at every step - remember the detail.

Knowledge Analyst and fit

  1. 11.In a research exercise, how would you write a one-page summary of an industry?

    What they're checking
    Reported in the Knowledge Analyst process.
    How to answer
    Market size and growth, the big players, trends, and 2-3 'so whats' - each point with a source. Bullets, clear headings, one takeaway.

  2. 12.Why McKinsey, and why consulting?

    What they're checking
    Motivation.
    How to answer
    Problems across different industries, learning from people, and a McKinsey piece of work or report you have read - specific.

7-day preparation plan for the McKinsey & Company interview

  1. Day 1: Case frameworks - profitability, market entry, growth.
  2. Day 2: Market sizing - five questions out loud.
  3. Day 3: Case maths and reading charts.
  4. Day 4: Two full cases with a partner.
  5. Day 5: PEI stories - write them out and think of follow-ups.
  6. Day 6: Synthesis practice + read about Solve.
  7. Day 7: A mock interview - case + PEI.

Preparation tips

  • Practise cases out loud with a partner - reading alone isn't enough.
  • Mental maths for 10 minutes daily - percentages, crore/lakh, growth.
  • Prepare 3-4 PEI stories in depth - with answers to 5 follow-ups each.
  • Build the habit of looking at data calmly for Solve.

Mistakes to avoid

  • Forcing a memorised framework onto every case.
  • Saying 'we' in the PEI and not making your role clear.
  • Mixing up units (crore, %) in the maths.

Frequently asked questions

What is McKinsey Solve?

McKinsey's game-like digital assessment, where you look at data in scenarios and make decisions.

What is the McKinsey PEI?

The Personal Experience Interview - deep questions about one real story of yours, on themes such as leadership and impact.

What is the difference between a McKinsey Business Analyst and a Knowledge Analyst?

Business Analysts work in client teams; Knowledge Analysts provide research and expertise from knowledge centres (such as Gurugram). The process is reported to differ too.

Can the McKinsey interview be in Hindi?

It is usually in English. Practise thinking in Hinglish and speaking in English with structure.

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