trader interview questions shared by candidates
A man is rowing a boat to travel up the river. each day he travels 5 miles upstream but at night when he resting he travels 4 miles downstream. How many days does he take to travel 20 miles?
The correct answer is probably not the one you come up with first. Requires you to have a good grasp of the scenario and some lateral thinking.
4 days they didn't ask abt nights
The first three questions are mental math. I still remember the hardest one is calculating the 39% of 569 without any pen or paper. The next question is a simple probability: pick 2 cards from a set of poker without 2 Jokers, what is the probability that both cards are Ks. The last one is brain teaser: what is the angle between the minute hand and hour hand on a clock when 9:30.
The most important question is: Why do you want to work at Optiver? Indeed, you should ask yourself this beforehand too. There are plenty of preparation questions online for the process, but I think that Optiver know what they want and will see straight through somebody who doesn't walk the walk.
you and a friend are playing a coin tossing game. You will be tossing a coin and tracking the results. You each have a sequence you're looking for. Your sequence is HTT, your friends sequence is HHT. the player whos sequence appears first in the game wins. Would you want to play? What is your probability of winning?