Asked if i like to do investing, some probability questions, and how was my demo game round in which i had to predict a sum of the deck of cards

Rounds 1. The first round was Aptitude round . there were 2 sections in first round First was a time tester where we have to solve 41 normal Aptitude Questions just in 7 minutes and there were no negative marking. Second section consist of 15 Questions in 15 minutes with negative marking there were 20 students shortlisted after first Round and I was the one of them. 2. Next round was a group Activity Buying Selling Activity like in GURU movie famed Abhishek Bachchan and Aishwarya Rai.' there was a 100 rupee note consist of 6 digits and we have to figure out the total of it. We have to buy total numbers and sell respectively and after every 2 minute HR will declare a digit so we have to predict the number by using probability and make a profit 3. Last round was a HR round they will ask some basic finance questions and hr questions 0