Interns Interview Questions

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20% of the time a painting is real, 80% of the time it is fake. If it is fake you can sell for 10,000 if it's real it's worth 500,000 1. How much is the painting worth? 2. If you could buy the option to buy the painting for 100,000 after you found out if it was real or not, but not an obligation to buy, how much is this option
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Intern

Interviewed at Susquehanna International Group

3.8
Jan 29, 2016

20% of the time a painting is real, 80% of the time it is fake. If it is fake you can sell for 10,000 if it's real it's worth 500,000 1. How much is the painting worth? 2. If you could buy the option to buy the painting for 100,000 after you found out if it was real or not, but not an obligation to buy, how much is this option

Q: 3 Ants on a Triangle Puzzle....you have a triangle with 3 ants on different vertices of the triangle. What is the probability that either 2 of the ants or all of the ants collide if all 3 ants start walking on the sides of the triangle?
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Intern

Interviewed at Coviam

4.1
Feb 4, 2017

Q: 3 Ants on a Triangle Puzzle....you have a triangle with 3 ants on different vertices of the triangle. What is the probability that either 2 of the ants or all of the ants collide if all 3 ants start walking on the sides of the triangle?

Question 2: A chest contains a treasure that is equally likely to be worth any amount between $0 and $1,000. You may bid on the chest, but you only get it if you bid more than the value of the treasure, x. You can resell the treasure for 1.5x. What should you bid?
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Assistant Trader Intern

Interviewed at Jane Street

4.4
Apr 15, 2013

Question 2: A chest contains a treasure that is equally likely to be worth any amount between $0 and $1,000. You may bid on the chest, but you only get it if you bid more than the value of the treasure, x. You can resell the treasure for 1.5x. What should you bid?

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