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Formulas for consulting interviews

BCG McKinsey quants
Edited on Aug 10, 2018
1 Answer
4.6 k Views
Anonymous B asked on Aug 10, 2018

Hi all,

I hope you are doing well. Do you have any cheat sheet on the must-known formulas for consulting interviews (maybe in a case book)?

Here is what I have on mind: payback period, NPV, DCF, Breakeven point, contribution margin, 72 rule, annuity, perpetuity...

Thanks a lot for your help

Best,

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Vlad
Expert
 replied on Aug 10, 2018
McKinsey / Accenture Alum / Got all BIG3 offers / Harvard Business School

Hi,

Here is a list of the necessary math and formulas:

  • Interest rates calculations
  • Compound margin
  • NPV using the Rule of 72, Perperuity
  • CAGR using the Rule of 72
  • Little's Law
  • Currencies exchange calculations
  • Speed, time, distance calculations
  • Equations, systems of equations
  • Ratio & Proportions
  • Solving the problems by calculating the area of the triangle
  • Profit / breakeven formula
  • Correlations, outliers (being able to spot on the graphs, tables)

Best

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