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trader interview questions shared by candidates

## Top Interview Questions

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19 Apr 2016
 What is the expectation of a 6 sided die? What is an expectation of a 20 sided die? You have two balls of equal density. One with a diameter of 1.5 ft and the other 1 ft. The 1.5 ft ball weighs 27 lbs. What is the mass of the 1 ft ball?1 Answer(1/6)(1+2+3+4+5+6) = 3.5 (1/20)(1+2+...+20) = 10.5 Should've got the trick from the previous question but instead faffed about trying to add 1 to 20 in my head and divide by 20. 27/1.5^3 = m/1^3. m = 8. Realised that 27 was 3^3 far too late and that it is just (3/1.5)^3.

15 Jan 2019
 90% confidence interval for length of roads in UK1 AnswerApproximate the UK with a rectangle of sides ~1000 km and 200 km (this can be guessed based on the length of a country you know and remembering how much bigger or smaller the UK is on a map compared to the country you chose). These numbers give a surface of 2 * 10^5 km^2. Assume road coverage of 10%. Hence the surface of all roads in the UK is 2 * 10^4 km^2. How much wide is a road on average? Well assume 10 m = 10^-2 km. Hence, the total length is 2 * 10^6 km. So you have guessed a total length of 2 million km. The true value should be 420,000 km, so you are off "just" by a factor of 5.

29 Mar 2019

17 Nov 2014
 80 questions in 8 minutes1 Answerextremely tough. need a lot of practice

9 Oct 2019
 what do you know about samuel and co?1 Answerstarted din 2012 and about 3,000 members joined. company has expanded rapidly

13 May 2017
 Explain in your words what is a CFD? 1 AnswerA CFD is acontract for difference, a derivative contract, e.g. a forex spot contract.

27 Oct 2020
 Why are you right for this role?1 AnswerListed my skills and expereince, explained how my values fit compnay culture

21 Mar 2012