where can i find case techniques like rule 72 for compound, etc? Is there any list of such things for case interview?
Where to find case frameworks?
Here is a set of things you need to know:
1) Math and formulas:
- Interest rates calculations
- Compound margin
- NPV using the Rule of 72, Perperuity
- CAGR using the Rule of 72
- 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)
2) Fast math skills
- Rounding up and down
- Learn how to multiply double digit numbers (google fast math tips)
- Learn the division table up to 1/11 (i.e. 5/6 = 83.3)
- Learn how to work with zeros (Hint: 4000000 = 4*10ˆ6)
Use math tools (Mimir math for iOS), Math tool on Viktor Cheng website to practice
3) Working with tables and graphs and deriving conclusions
- Study "Say it with Charts" book
- Check all available MBB presentations and publications. Practice to derive conclusions and check yourself with the actual ones from the article / presentation
- GMAT IR part (Official guide and Manhattan prep)
- Learn basic statistics (Any GMAT or MBA prep guides)
the most common formulas you need to know in a consulting interview are:
- Breakeven point
- Rule of 72
- Perpetuity formula and general NPV formula
Besides that, you should be familiar with simple and compound interests.
Finally, you may want to review the formulas for volume/surface of the main solid figures (pyramid, cone, cylinder, sphere), which could be useful in market sizing cases.
I see two aspects to your question:
- Case interview math: Just google this term "case interview math" and you will get more than enough resources
- More general case interview frameworks and business concepts: I wrote a book very specifically for this topic giving a) an overview of relevant business concepts and frameworks and b) how to specifically use this concepts and frameworks in a real-life approach: http://cif.consulting-case-interviews.com/
Hope that helps!
Interviewer-Led vs Candidate-Led cases
Case Interviews can be led by the candidate or by the interviewer: In Candidate-led cases the main challenge is the structure. In Interviewer-led cases the main challenge is to adapt quickly