I applied online. The process took 3 weeks. I interviewed at Oliver Wyman (London, England) in Nov 2017
Interview
I applied online, the maths test was excruciatingly hard. The interview process was ok. General competency based interview and a Case. Didn't necessarily feel too difficult and it was hard to tell exactly what they wanted from you.
Applied through the website by uploading my resume and cover letter. Got accepted for the first round interview consisting of
2 door to door interviews including fit and case parts each.
Got rejected after the first round
Interview questions [1]
Question 1
Fit: Professional experiences / strengths/ weaknesses
Case : Google Revenue per year?