Explain qualitative vs. quantitative reasoning.

Consulting is all about making judgments and best-case scenarios based on logic, analysis, and reasoning. The interviewer would like to see that you understand the difference between qualitative and quantitative reasoning, and when each is best used. Qualitative reasoning is used for problems related to processes, controls, and diagnosis. Quantitative reasoning is more related to the gathering of facts, and hard data. Keep your reply simple, and easy to understand.