Trading Assistant Interview Questions

5,701 trading assistant interview questions shared by candidates

You are blindfolded and sitting at a table with 100 quarters. Ten of the quarters are tails-up and 90 are heads up. You wish to separate the quarters into two piles, each with the same number of tails. You can flip as many as you like and the piles don't need to be the same size. How do you do it?
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Trading Intern

Interviewed at Wolverine Trading

4.7
Feb 21, 2012

You are blindfolded and sitting at a table with 100 quarters. Ten of the quarters are tails-up and 90 are heads up. You wish to separate the quarters into two piles, each with the same number of tails. You can flip as many as you like and the piles don't need to be the same size. How do you do it?

A follow-up question: If your sum is 35 now, and you know for sure that you will not roll a 1 in the next round. If your sum is above 42, then the game ends and you take the money. If below 42, you must keep rolling until the sum is above 42. What is the amount of money you are mostly likely to get?
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Trading Intern

Interviewed at Jane Street

4.4
Feb 26, 2015

A follow-up question: If your sum is 35 now, and you know for sure that you will not roll a 1 in the next round. If your sum is above 42, then the game ends and you take the money. If below 42, you must keep rolling until the sum is above 42. What is the amount of money you are mostly likely to get?

Phone interview. All questions were mental math. You are not allowed to use pen/paper, calculator or computer. Asked me to find the angle between the hour and minute hand if the time is 9:30. Also, what is the probability that the world series goes till the 7th game.
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Trading

Interviewed at Jane Street

4.4
Mar 11, 2015

Phone interview. All questions were mental math. You are not allowed to use pen/paper, calculator or computer. Asked me to find the angle between the hour and minute hand if the time is 9:30. Also, what is the probability that the world series goes till the 7th game.

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