Boston Consulting Group Project Manager interview questions

The process took 2 weeks, I had a first interview with the recruiter and after I've met the hiring manager. Both were very nice and gave me a good impression, one of my friends though suggested me not to continue the process as she was working there and told me the salary I was offered was quite down compared to the company's benchmark. Looking back I wish I continued the project, I think she said that cause she didn't want me to earn more than her. She was promoted to senior level the past year. If the company wants to find out more I'll be happy to give them more details.