Quantitative Skills: Maths, Guesstimates & Exhibits is a structured track of 15 lessons that build a complete, interview-ready understanding of the topic. Work through them in order, then use the quiz and flashcards in each lesson to revise.
What this course covers
- The Mental Maths a Case Interview Demands - The operations you must do without a calculator, and how to build the speed.
- Percentages, Ratios & Growth Rates at Speed - Fast percentage and growth arithmetic, including compounding shortcuts.
- Rounding, Approximation & Sanity Checks - Rounding deliberately, and the checks that catch an order-of-magnitude error.
- Working With Indian Number Formats: Lakh, Crore & Conversions - Converting between lakh, crore, million and billion without fumbling.
- Guesstimation Fundamentals and the Four Approaches - The four estimation routes, and choosing one that fits the question asked.
- Population, Household & Demographic Building Blocks for India - The Indian base numbers worth memorising, each with source and period.
- Supply-Side versus Demand-Side Estimation - Two routes to the same estimate, and using one to check the other.
- Stating and Defending Your Assumptions - Making assumptions explicit and revising them under challenge without panic.
- Ten Fully Worked Guesstimates With Indian Numbers - Ten estimates worked end to end, each with assumptions and a sanity check.
- Reading Charts, Tables & Exhibits Quickly - A fixed reading order that gets you to the insight in under a minute.
- Spotting the Trap in an Exhibit - The distortions interviewers plant: axes, bases, mix effects and missing years.
- Break-Even, Payback & Simple Return Calculations - The three calculations that recur in cases, each worked with realistic numbers.
- Statistics Every Consultant Should Not Get Wrong - Averages, weighting, base rates and mix - the errors that reach final decks.
- Using AI to Check Your Maths and Build Estimates - Using AI as a second pair of eyes on arithmetic, and why it still needs checking.
- Rapid-Fire Drills With Full Solutions - Timed drills across maths, estimation and exhibits, with full worked answers.