Prep · BCG
BCG case math
BCG cases tend to be more data-heavy than McKinsey or Bain. You'll encounter charts, tables, and multi-source data sets. The math challenge isn't just computation — it's extracting the right numbers from noisy data and knowing which calculation matters.
Interview format
BCG Online Case (Casey)
An interactive online simulation where you analyze data, choose frameworks, and solve quantitative problems. Heavily chart-based.
Case interviews
2-3 rounds with cases that emphasize data interpretation. Charts and exhibits are common — you'll calculate from visual data, not just stated numbers.
Behavioral fit
Runs alongside case rounds. No math component.
What BCG tests in math
BCG's math skews toward data interpretation and multi-step analysis. You might see a chart showing revenue by region, be asked to identify the growth opportunity, then calculate the revenue impact of capturing that opportunity. The 'so what' matters as much as the number — BCG wants you to interpret your answer, not just state it.
What to practice
Chart reading — Practice extracting data points from bar charts, line graphs, and tables under time pressure.
Growth rate calculations — BCG cases frequently involve trend analysis and growth projections.
Multi-step problems — One calculation feeds into the next. Practice chaining 2-3 operations without losing track.
Data interpretation — After calculating, practice immediately stating what the number means for the business.
Insider tip
In BCG interviews, finish every calculation with 'which means...' and state the business implication. The math is the tool, not the answer.
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