City of London, England interview questions | Glassdoor.co.uk

# Interview questions in City of London, England

Bloomberg L.P. Interviews in City of London

www.bloomberg.com /  HQ: New York, NY

24 Interviews in City of London (of 4,041)

2.8 Average

UBS Interviews in City of London

www.ubs.com /  HQ: Zurich, SZ

12 Interviews in City of London (of 1,386)

3.5 Difficult

Goldman Sachs Interviews in City of London

www.goldmansachs.com /  HQ: New York, NY

10 Interviews in City of London (of 3,677)

3.2 Average

## Interview Questions in City of London

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3 Sep 2012
 Pretty standard question that has been asked before... keep flipping a coin until a winning combination appears (either HHT or HTT). Which strategy would you pick given the choice and why. Find the probabilities of winning associated with each strategy.5 AnswersEssentially HHT is the better strategy. The probabilities are 2/3 HHT and 1/3 HTT. To see this if you draw a tree diagram (best to draw 4-5 iterations if you can't see it) and look at all the possible ways of winning. It turns out HHT is twice as likely to win hence the 2/3, 1/3 split.By drawing 5 iterations, both HHT and HTT seem to make an appearance 7 times. How is HHT twice as likely to win?The mathematical expectation of hte number of flipping for both compbinations is 25/2. In any case the probabilities of appearance of these compbinations are the same, so one can use both strategies with the same result. 50% 50%Show more responsesBecause you can throw h h h and all you need to throw is a tails to get HHt, but there is no fail, please play again throw for htt, so yes, on a throw of 3, they have th same probability, but in a continued series you can play again on h h t if you fail on th 3rd throw.Note that both HHT and HTT combination starts with H, so you can almost neglect H, so when you first observe an H, you wait for HT or TT both of which are equally as likely given the order matters i.e. (HT and TH are different), hence both should be good strategies.

### Software Engineer at Jane Street was asked...

4 Mar 2012
 Given a list of words, right a function to return a list of pairs of palindromes5 AnswersPresume you mean pairs of ANAGRAMS? Otherwise why would palindromes come in pairs? Simple O(n^2) implementation in Python: for left in words: for right in words: if (not left==right and sorted(left)==sorted(right)): print (left, right)from itertools import combinations def find_anagrams(words): return [(a, b) for a, b in combinations(set(words), 2) if sorted(a) == sorted(b)]A simple C++ solutions. O(nlogn). void reverse(string &s) { int len = s.length(); for(int i = 0, j = len-1; i palindromes(vector words) { if(words.empty()) return words; vector pal; sort(words.begin(), words.end()); vector::iterator it = words.begin(); for(; it != words.end(); ) { string tmp = *it; reverse(tmp); if(binary_search(++it, words.end(), tmp)) { pal.push_back(tmp); cout< current string, value -> reversed string. 2. Traverse the hashmap, add the strings to a list, where key == Value. 3. return list.

### Compliance Analyst/Summer Analyst at Goldman Sachs was asked...

13 Jul 2012

19 Oct 2011
 derive the formula for the variance of OLS from scratch4 Answersdelta^2*(x'x)^(-1)I think you meant: sigma^2*(x'x)^-1Both of these are wrong. Beta_hat = (X'X)^(-1)(X'Y)Show more responseshttps://en.wikipedia.org/wiki/Proofs_involving_ordinary_least_squares

### Operations Work Placement at Goldman Sachs was asked...

14 Mar 2011
 why operations ?1 Answerwill give me a significant overview of the inside process of a bank

### Analyst at Baring Asset Management was asked...

23 Apr 2014
 insisting on why you want to leave your current job1 AnswerIn the feedback they said you can handle the job and we liked your profile and interview but we don't know why you are leaving your current job. I found that as a strange answer. They are very old fashion and don't want to change it (as they said)

### Spring Into Banking at Deutsche Bank was asked...

6 Jan 2012
 Why DB Vs the other 4 banks (ie. GS, MS, JPM)1 AnswerEuropean, culture is different, closer.

### Spring Into Banking at Deutsche Bank was asked...

6 Jan 2012
 You have a wall. It doesn't matter how big it is. You are given an Ivy (plant) which is set at the bottom of the wall. This Ivy grows at a rate which is squared the rate of the day before (ie. day 1: 1, day 2: 2, day 3: 4, day 4: 16, etc). If we buy another Ivy plant, putting it on the opposite side of the wall, which performs in the same way to the first, how much time would we be gaining?1 Answer1 day

### Spring Into Banking at Deutsche Bank was asked...

6 Jan 2012
 Give me a personal situation. 1) Stressful situation 2) Teamwork where you had a different opinion, what did you do and what was the outcome? 3) Teamwork where you had a discussion, how did you solve it? 4) Situation when you had to explain something to someone who didnt understand 5) Something you have to improve and how you're working on it 1 Answer2) I was later told by interviewer they were looking for a situation where you got your way, was assertive, but talking and negotiating, not just imposing it on others.

### CDS Project Manager at MarketAxess was asked...

16 May 2012
 the most unexpected interview question asked was: whether it was feasible to save the CDS info in a cloud computing?2 AnswersCertainly this is not an smart question.This interview never took place, this whole thing was made up by a disgruntled employee who posted it after they were sacked. Don't believe everything you read!
110 of 369 Interview Questions