I've just finished the first interview of 1st round. Overall, I think it went okay, besides the mental math part. I spent a little to much time on the calculations, and almost couldnt find one of the values I calculated before that was needed for the last calculation.
The feedback I recieved was;
1- I should be more organized with my notes regarding the calculations and there were quicker ways to get to the answer. Analytical part
2- I missed to discuss a part in the case itself because I didn't include that part (distribution channels) in my structure. (The question was about declining revenue) He said that sometimes it is better to not follow a rigid structure, but think more broadly. Also to go more in depth about the branches.
He also said that these interviews are also some kind of practice, and I will get better when I do more. But other than the 2 areas discussed above, other parts he said that I did well.
What do you think that this feedback implies, do you think I will probably fail because of the mental math part? Also I have another one tomorrow, how should I tailor my practice after these feedback?