American Express Software Engineer Internship interview questions

Talked to a recruiter at the career fair for my university and was immediately scheduled for an interview on campus. The interview was two short parts, a technical and a behavioral. Both parts were easy questions, and I got an offer less than a week later.

Was asked a question about solving numerical analysis. I interviewed through school but was not offered a followup interview. The recruiter asked a couple of questions on my resume then asked numerical analysis questions.