Coach note

Interviewers ask this kind of question to surface how you think, not what you remember. The strongest answers are specific, calmly told, and end on what changed.

Case interview · Market Sizing or unit Economics math

A client's supplier offers 2/10 net 30 terms, and the client's credit line costs 9%. They ask whether taking the early-payment discount is still worth it. Walk me through the math and your recommendation.

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Skipping the discount means paying 100 instead of 98 for the privilege of holding the money twenty extra days — from day 10 to day 30.

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