Contacted by a recruiter. First round phone interview was easy, 5 simple math questions, algebra and such. Invited to Richmond for the second round interview. two behavioral interviews and two case interviews. One case interview was about a call center. they showed you a table about how many minutes per call they got for customer service from Monday to Sunday and how many calls they got each day. asked about the average minutes per call. then they told you there are two types of calls: one type is the representative can solve immediately, the other type is the call has to be transferred to another person. they told you the percentage of each type and the cost of each call per minute. they told you type ii is more expensive because it takes longer time. now they want to cut costs by $1 million. how much is the percentage of type ii calls should be. second case interview was about atm. they want you to know how atms make profit. by charging customers from other banks. two types of atms again. one they put at their branches. other they put elsewhere. they told you the costs of two types. type ii is more expensive to operate but can make profit. they want you to calculate break even points. then ask you to draw a plot. don't remember details.