Trader Trainee Interview Questions

8,650 trader trainee interview questions shared by candidates

There are 1000 people in a hall. One person had his hand painted. Every minute everyone shake their hand with someone else. How much time is needed to paint all the hands? What is the best scenario? What is the worst scenario?
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Quantitative Trader - Intern

Interviewed at Jane Street

4.4
Aug 19, 2020

There are 1000 people in a hall. One person had his hand painted. Every minute everyone shake their hand with someone else. How much time is needed to paint all the hands? What is the best scenario? What is the worst scenario?

-If the radius of a sphere is expanding at a rate of 4 metres/second, and the starting radius is 0.25 metres, what is the volume of the sphere after 2 1/2 minutes? -if the mean of X=4 and the variance of X is 9, and the mean of Y=5 and the variance of Y is 16, what is the standard deviation of X + Y given a relationship of -3/8 (x to y)? - there are 3 faucets. Faucet #1 can fill a sink in 20 min, F#2 can fill a sink in 12 min, and F#3 can fill a sink in 5 min. If all 3 faucets are running at the same time, how long will it take for the sink to fill?
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Junior Trader

Interviewed at TransMarket Group

4.1
Feb 12, 2014

-If the radius of a sphere is expanding at a rate of 4 metres/second, and the starting radius is 0.25 metres, what is the volume of the sphere after 2 1/2 minutes? -if the mean of X=4 and the variance of X is 9, and the mean of Y=5 and the variance of Y is 16, what is the standard deviation of X + Y given a relationship of -3/8 (x to y)? - there are 3 faucets. Faucet #1 can fill a sink in 20 min, F#2 can fill a sink in 12 min, and F#3 can fill a sink in 5 min. If all 3 faucets are running at the same time, how long will it take for the sink to fill?

You have 17 coins and I have 16 coins, we flip all coins at the same time. If you have more heads then you win, if we have the same number of heads or if you have less then I win. What's your probability of winning?
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Assistant Trader

Interviewed at Susquehanna International Group

3.8
Dec 2, 2015

You have 17 coins and I have 16 coins, we flip all coins at the same time. If you have more heads then you win, if we have the same number of heads or if you have less then I win. What's your probability of winning?

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