
Brain Teaser Questions: consulting interview examples with worked solutions
Practice brain teaser questions with consulting-style examples, spoken solution patterns, answer rubrics, and targeted Road to Offer drills.
May 22, 2026
Improve mental math speed, market sizing accuracy, and quantitative analysis for case interviews.

Practice brain teaser questions with consulting-style examples, spoken solution patterns, answer rubrics, and targeted Road to Offer drills.
May 22, 2026

The free AI tools that actually run case math drills with feedback: ChatGPT, Claude, Road to Offer Math Drill, and the prompts to make them work.
May 8, 2026

6 formula families cover 90% of case math: profitability, pricing, growth, breakeven, NPV, market sizing. Memorize once, drill until automatic.
May 1, 2026

Improve case math by setting up formulas, labeling units, rounding intentionally, and sanity-checking your answer.
May 1, 2026

Master break-even analysis for case interviews. Learn the formula, contribution margin, and work through fully solved examples with real numbers.
Mar 20, 2026

10 guesstimate interview questions with quick-reference answers, the 5-step framework used at McKinsey, BCG, and Bain, plus 3 fully worked examples.
Mar 20, 2026

When to use ROI, NPV, and payback period in case interviews — with formulas, worked examples, and how interviewers score the math.
Mar 20, 2026

Every consulting math formula you need for case interviews: margins, CAGR, break-even, ROI, NPV, and unit economics — with worked examples and when to use each.
Mar 15, 2026

Mental math shortcuts organized by case type: profitability margin calculations, market sizing estimation chains, growth CAGR shortcuts, and pricing tradeoff math. Worked examples for each.
Mar 1, 2026

30 case interview math drills with step-by-step solutions across percentages, break-even, CAGR, market sizing, and profitability. Interactive drill bank with difficulty ratings and business interpretations.
Feb 6, 2026

Learn the 5-step market sizing method used in 25% of MBB first-round interviews. 5 worked examples (top-down + bottom-up), reference data for 5 countries, and timed practice drills.
Feb 1, 2026

Get faster and more accurate at case interview math. Rounding, shortcuts, and drills for percentages, multiplication, and sanity checks, without a calculator.
Feb 1, 2026
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