Junior Trader Analyst Interview Questions

7,668 junior trader analyst interview questions shared by candidates

You bid for a coin. You're confident that the price of the coin is between 0 and 100, if your bid is greater than the price, you win and sell it to your friend at the price of 1.5 times price. what's your bid to max your profit?
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Quantitative Trader

Interviewed at Jane Street

4.4
Dec 2, 2010

You bid for a coin. You're confident that the price of the coin is between 0 and 100, if your bid is greater than the price, you win and sell it to your friend at the price of 1.5 times price. what's your bid to max your profit?

There are 3 coins. One coin has heads on both sides, one coin has tails on both sides, the third one has head on one side and tail on the other side. Now I pick up one coin and toss. I get head. What is the chance that the coin I picked has heads on both sides?
avatar

Quantitative Trader

Interviewed at Jane Street

4.4
Oct 17, 2010

There are 3 coins. One coin has heads on both sides, one coin has tails on both sides, the third one has head on one side and tail on the other side. Now I pick up one coin and toss. I get head. What is the chance that the coin I picked has heads on both sides?

You have 3000 apples at Edingburgh want to transfer as many apples as you can to London. You have a truck, the maximum capacity of which is 1000 apples. London is 1000 miles away from Cambridge and when the truck is carrying apples, for every mile it drives, it will drop one apple. What is the maximum number of apples you can deliver to London?
avatar

Trader

Interviewed at Jane Street

4.4
Dec 6, 2010

You have 3000 apples at Edingburgh want to transfer as many apples as you can to London. You have a truck, the maximum capacity of which is 1000 apples. London is 1000 miles away from Cambridge and when the truck is carrying apples, for every mile it drives, it will drop one apple. What is the maximum number of apples you can deliver to London?

N points lie on a circle. You draw lines connecting all the points to each other. These lines divide up the circle into a number of regions. How many regions is this? Assume that the points are scattered in such a way as to give the maximum number of regions for that N.
avatar

Quantitative Trader

Interviewed at Jane Street

4.4
Jan 2, 2010

N points lie on a circle. You draw lines connecting all the points to each other. These lines divide up the circle into a number of regions. How many regions is this? Assume that the points are scattered in such a way as to give the maximum number of regions for that N.

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