Tredence interview questions

I was given a few case studies in the interview. In the first round of interview which seemed like a mix of technical and HR, I was asked about my background and the question was, 1. Explain how Flight Ticketing Dynamics work. After this discussion, the interviewer went to my projects, and then I had a project in Bitcoin. He started asking questions about cryptocurrencies which went for the next 30 minutes. The second round of interview was a bit tougher relative to the first one. Questions Asked: 1. Suppose you are the CEO of Uber. You start Uber in a new city. You have limited number of cars in that city and there is rush at some selected places at some definite time, how will you manage the system, to which cab driver you'll give which passenger so that the fuel cost of transportation of the cab to the passenger is minimised and the overall profit from the city is maximised. Basically, it was a question of Optimisation. The second problem was a puzzle. He asked there's a car whose each tyre can only go for 5 kms after which it will burst. You have a spare tyre in your car. What is the maximum distance with which you may travel in this car?