The interview consisted of one group task, 3 case study interviews and 1 CV interview. There was also lunch provided and an opportunity to speak to a number of recent graduate recruits to the firm. The group task had 8 people in, and lasted one hour. We split into pairs with each pair given one task. We had to read through some data, and try and find the key bits of information. Then we had to present what we had found to the rest of the team, and to someone from Oliver Wyman who was asking an the team manager. In the CV interview, I was asked to expand on parts of my CV, and asked general competency questions. The case study interviews all started with a general chat, sometimes about my CV, or just other questions. Then we worked through one particular case, which took about 20 mins. All the interviews were, in total, about 30 minutes each.