The process took 3 days. I interviewed at Capital One (Plano, TX) in Mar 2009
Interview
First part was an online basic math test, second part was two 1:1 case interviews about business problems. Problems are very specific, mid-level algebra is necessary, and factors will change over the course of the case, and you will have to be able to support your assertions in the face of changing facts (or change your answers).
Interview questions [1]
Question 1
Case interview related to reducing credit card limits.