Indian Institute of Technology (IIT), Chennai
Chennai, Tamil Nadu
Your seniors at Indian Institute of Technology (IIT), Chennai were your true well-wishers, they shared their placement interview questions for you. 🙏
Filter interviews byIndian Institute of Technology (IIT), Chennai Placement Interview Questions
Updated
4 Dec 2024
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I applied via Campus Placement and was interviewed in Dec 2016.
5 Interview Rounds
Interview Questions
- Q1. Tell me about yourself?
- Q2. Given a biased coin, how do you create an unbiased toss?
- Q3. Once you have done that, what is the expected number of turns you need to wait for getting the first unbiased toss
- Q4. Suppose a man starts at 0, and has to go to 20 on the number line. He can either move in steps of 1 or 2. How many number of ways can he do this? Extending this...read more
- Q5. Have you applied to any PhD programs?
- Q6. Given a number line, and we have a rod of length L. We drop the rod on the line, what is the probability that it covers an integer?
- Q7. Suppose there are N chocolates, and I pick a random one, and eat that chocolate and also everything to the right of it. I then continue this process with the re...read more
- Q8. Supposed there is a party, with 9 people, each person wants to give gifts to 3 people and also wants a gift from them. Is this scenario possible? If not, when i...read more
- Q9. Given a tank with liquid, and there are flows in and out, inflow is U and outflow is Kx, where x is current height of liquid in tank, all needed quantities give...read more
- Q10. What are your interests? (Be careful, align the interests to their profile)
- Q11. Given there are 2 kinds of coins spread all over the world, and we start picking coins, what is the expected number of coins to pick, to have both kinds of coin...read more
- Q12. Given a window of 1 hour, and two friends want to meet, given that the arrival time follows a uniform distribution, what is the probability that they will arriv...read more
- Q13. Grilled me about my internship, (time series modeling) went in depth about why I did this, that, etc. If you have a time series or ML project, they will grill y...read more
- Q14. Given we have a (un)biased die, with given probabilities, and we toss it till we get a sum of 100 or more (basically if the sum crosses 100), and we stop. What ...read more
- Q15. What do you think our team does. (I gathered this information by asking a lot of questions from other interviewers. It helps a lot)
- Q16. What do you know about options?
- Q17. What is a call option? Why are call options bought?
- Q18. If I have to buy fuel from you, what option would I buy?
- Q19. If we increase the volatility of the stock, how does the price of a call option change?
- Q20. How do you calculate the price of a call option?
- Q21. Is the price of a barrier option more or less than a normal option?
- Q22. Do you have any questions?
Interview Preparation Tips
Round: Resume Shortlist
Experience: The resume shortlist, I feel, was slightly unfair. They had put a cut-off of 9 for branches outside EE/CS.
Tips: Don't worry, they might not follow this next year. Your resume should have a mix of probability, finance (courses on these are enough, though internships will really help)
They don't care about your PoRs in the interview, but this may matter for the resume shortlist (Assuming it's done fairly) So be sure to include them.
Round: Test
Experience: There were 30 MCQ questions, 10 each on the above mentioned sections. There is no dearth of time, so you can think clearly and solve the question. I found that quant was the hardest of the lot, followed by coding followed by ML.
ML questions will be on SVMs, ANNs, Ensemble learning methods, Hypothesis testing, Feature selection, Model selection etc. the standard topics you can find in "Elements of Statistical Learning" by Hastie, Tibshirani and Friedman.
The coding section was mostly on arrays, data structures (binary tree, mostly), recursion, and one subjective question.
For quant, you need to be really well versed in probability, definite integrals (Not kidding), and other JEE math.
Tips: You'll need to do really well in atleast one of the sections to be shortlisted. Even if you are non CS/EE, (assuming you don't have experience in coding) you can do really well in ML section. Aim for that and prepare in advance. Once you are through to the interview, you just need to give them a reason to hire you. :)
Duration: 2 hours 15 minutes
Total Questions: 30
Round: Technical Interview
Experience: The lady who interviewed me was a chemE graduate from IIT Bombay. She was friendly and willing to help when asked about a problem. Overall, very good interview experience.
Tips: For all interviews, I'll say this. Ask a lot of questions. They are very interested in explaining what they do, and feel free to interrupt them if you don't understand something. Always try to relate what they say to your interest. That way you'll bring new perspective into the interview. And that's very useful, believe me. If they have shortlisted you, they want to hire you. You just have to give them a reason to. Always relate your experiences and your interests with what they do. if you do that, they will find a role for you, somewhere. Do not worry. I was interested in machine learning and I got a finance profile. (They have a team in that profile that does ML)
For quant questions, I would suggest thinking out loud and interacting each step of the way. They care more about your thinking than about the answer. They will point out the errors and you can correct them. Don't worry about silences, as long as you think out loud, it will not be a problem.
Round: Technical Interview
Experience: Again, very friendly interview. The interviewer will lead you on, and assist you if you're facing any difficulty. :) Just be sure to be jovial and interactive.
Tips: Same as above.
Round: Technical Interview
Experience: Very technical, serious interview. I think he was the senior guy. He still helped out a lot.
Tips: Be to the point, he was more interested in the technical knowledge.
Round: Technical Interview
Experience: The final interview I had. He was very helpful, and was very eager to talk about the company and what they do. He had an extensive knowledge of finance, options (obviously). The course on Mathematical Finance by the maths department was very useful. You need to have a good knowledge of options for getting through this.
Tips: Same as the first interview.
Skills: Quant+Math, Problem Solving Abilties, Probabiity, Internship Experience, Finance
College Name: IIT Madras
Experience: The resume shortlist, I feel, was slightly unfair. They had put a cut-off of 9 for branches outside EE/CS.
Tips: Don't worry, they might not follow this next year. Your resume should have a mix of probability, finance (courses on these are enough, though internships will really help)
They don't care about your PoRs in the interview, but this may matter for the resume shortlist (Assuming it's done fairly) So be sure to include them.
Round: Test
Experience: There were 30 MCQ questions, 10 each on the above mentioned sections. There is no dearth of time, so you can think clearly and solve the question. I found that quant was the hardest of the lot, followed by coding followed by ML.
ML questions will be on SVMs, ANNs, Ensemble learning methods, Hypothesis testing, Feature selection, Model selection etc. the standard topics you can find in "Elements of Statistical Learning" by Hastie, Tibshirani and Friedman.
The coding section was mostly on arrays, data structures (binary tree, mostly), recursion, and one subjective question.
For quant, you need to be really well versed in probability, definite integrals (Not kidding), and other JEE math.
Tips: You'll need to do really well in atleast one of the sections to be shortlisted. Even if you are non CS/EE, (assuming you don't have experience in coding) you can do really well in ML section. Aim for that and prepare in advance. Once you are through to the interview, you just need to give them a reason to hire you. :)
Duration: 2 hours 15 minutes
Total Questions: 30
Round: Technical Interview
Experience: The lady who interviewed me was a chemE graduate from IIT Bombay. She was friendly and willing to help when asked about a problem. Overall, very good interview experience.
Tips: For all interviews, I'll say this. Ask a lot of questions. They are very interested in explaining what they do, and feel free to interrupt them if you don't understand something. Always try to relate what they say to your interest. That way you'll bring new perspective into the interview. And that's very useful, believe me. If they have shortlisted you, they want to hire you. You just have to give them a reason to. Always relate your experiences and your interests with what they do. if you do that, they will find a role for you, somewhere. Do not worry. I was interested in machine learning and I got a finance profile. (They have a team in that profile that does ML)
For quant questions, I would suggest thinking out loud and interacting each step of the way. They care more about your thinking than about the answer. They will point out the errors and you can correct them. Don't worry about silences, as long as you think out loud, it will not be a problem.
Round: Technical Interview
Experience: Again, very friendly interview. The interviewer will lead you on, and assist you if you're facing any difficulty. :) Just be sure to be jovial and interactive.
Tips: Same as above.
Round: Technical Interview
Experience: Very technical, serious interview. I think he was the senior guy. He still helped out a lot.
Tips: Be to the point, he was more interested in the technical knowledge.
Round: Technical Interview
Experience: The final interview I had. He was very helpful, and was very eager to talk about the company and what they do. He had an extensive knowledge of finance, options (obviously). The course on Mathematical Finance by the maths department was very useful. You need to have a good knowledge of options for getting through this.
Tips: Same as the first interview.
Skills: Quant+Math, Problem Solving Abilties, Probabiity, Internship Experience, Finance
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016.
1 Interview Round
Interview Questions
- Q1. How to create a uniform distribution from 1 to 200 using an ubiased coin?
Interview Preparation Tips
Round: Technical Interview
Experience: Talked about probability and programming questions. The same happened in 4 rounds of interviews.
Tips: Prepare probability and quant questions. Be calm. The interviewers are very helpful.
Skills: Probability And Statistics, Programming
College Name: IIT Madras
Experience: Talked about probability and programming questions. The same happened in 4 rounds of interviews.
Tips: Prepare probability and quant questions. Be calm. The interviewers are very helpful.
Skills: Probability And Statistics, Programming
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016.
5 Interview Rounds
Interview Questions
- Q1. Coding Algo
- Q2. Prob questions
Interview Preparation Tips
Round: Test
Experience: 3 sections in quant, coding and ML
Duration: 2 hours 15 minutes
Total Questions: 30
Round: Puzzle Interview
Experience: I had 4 rounds of prob puzzles.
Each round had
Tips: Think out aloud. The interviewer will fix you when you go wrong.
Round: Technical Interview
Experience: I did not do this round properly. I missed some very easy questions.
Skills: Probabiity
College Name: IIT Madras
Experience: 3 sections in quant, coding and ML
Duration: 2 hours 15 minutes
Total Questions: 30
Round: Puzzle Interview
Experience: I had 4 rounds of prob puzzles.
Each round had
Tips: Think out aloud. The interviewer will fix you when you go wrong.
Round: Technical Interview
Experience: I did not do this round properly. I missed some very easy questions.
Skills: Probabiity
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016.
3 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: Each section had 10 questions, 100 marks, with 45min duration for each. It consisted of Multiple Choice (+10, -3), Fill in the Blanks type(+10,0), and a coding question (+20).
Platform was HackerRank. You had to do good in atleast 2 sections
Tips: CS: DSA, Graph Theory, Time Complexity
Quant: Probability, Probability, Probability.
Machine Learning: Ensemble Methods, Bagging, Boosting, Decision Trees, etc. You need to know the concepts. No mathematical formulation or equations were asked
Duration: 1 hour 35 minutes
Round: Technical Interview
Experience: First of all, the GS panelists were really nice, kind and helpful. They provide with several hints, given you are sincere and have that attitude of solving the problem.
There were 6 technical rounds in all, with different teams of GS.
3 rounds consisted of questions from Probability, Expectation, Markov process, etc.
1 round for algorithm puzzles.
1 round for strategy puzzles.
1 round for Finance (discussed on derivatives, call options, etc.)
Tips: Be thorough with the basics. Don't beat around the bush. Given a problem, discuss the solution first and then go about doing it.
Skills: Probability And Statistics, Algorithm, Knowledge Of Your Resume Points, Aptitude, Finance Basics
College Name: IIT Madras
Experience: Each section had 10 questions, 100 marks, with 45min duration for each. It consisted of Multiple Choice (+10, -3), Fill in the Blanks type(+10,0), and a coding question (+20).
Platform was HackerRank. You had to do good in atleast 2 sections
Tips: CS: DSA, Graph Theory, Time Complexity
Quant: Probability, Probability, Probability.
Machine Learning: Ensemble Methods, Bagging, Boosting, Decision Trees, etc. You need to know the concepts. No mathematical formulation or equations were asked
Duration: 1 hour 35 minutes
Round: Technical Interview
Experience: First of all, the GS panelists were really nice, kind and helpful. They provide with several hints, given you are sincere and have that attitude of solving the problem.
There were 6 technical rounds in all, with different teams of GS.
3 rounds consisted of questions from Probability, Expectation, Markov process, etc.
1 round for algorithm puzzles.
1 round for strategy puzzles.
1 round for Finance (discussed on derivatives, call options, etc.)
Tips: Be thorough with the basics. Don't beat around the bush. Given a problem, discuss the solution first and then go about doing it.
Skills: Probability And Statistics, Algorithm, Knowledge Of Your Resume Points, Aptitude, Finance Basics
College Name: IIT Madras
I applied via Campus Placement and was interviewed in Dec 2016.
3 Interview Rounds
Interview Questions
- Q1. What is the expected number of tosses of a fair coin to get 3 consecutive heads?
- Q2. There is an urn with n red balls and 1 black ball in it. You and your friend play a game where you take turns drawing from the urn. The player who draws the bla...read more
- Q3. You roll a die until the sum of all die rolls becomes at least 100. What is the most likely value of the last roll?
- Q4. You have an n x n matrix in which all the rows and all the columns are sorted. Given an input number, describe an algorithm to search for the number in the matr...read more
- Q5. Given two arrays of size n each, describe an algorithm to find the largest common subarray of the two arrays
- Q6. Why do you want to join Goldman Sachs?
- Q7. Walk me through your resume
- Q8. There is a 2D plane with infinite parallel, vertical lines with a spacing of 1 unit between them. You drop a rod of length L randomly on the plane, with random ...read more
Interview Preparation Tips
Round: Technical Interview
Experience: Puzzles, probability questions
Tips: Brush up on probability problems
Round: Technical Interview
Experience: Questions on resume, especially interns.
Tips: Know your resume inside out.
Round: Technical Interview
Experience: Puzzles, algorithm questions
Tips: Learn algorithms from geeksforgeeks
Round: Technical + HR Interview
Tips: Be familiar with your resume, prepare for generic HR questions
Skills: Problem Solving Skills, Algorithm, Probability And Statistics, Knowledge Of Your Resume Points
College Name: IIT Madras
Experience: Puzzles, probability questions
Tips: Brush up on probability problems
Round: Technical Interview
Experience: Questions on resume, especially interns.
Tips: Know your resume inside out.
Round: Technical Interview
Experience: Puzzles, algorithm questions
Tips: Learn algorithms from geeksforgeeks
Round: Technical + HR Interview
Tips: Be familiar with your resume, prepare for generic HR questions
Skills: Problem Solving Skills, Algorithm, Probability And Statistics, Knowledge Of Your Resume Points
College Name: IIT Madras
I applied via Campus Placement
3 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: Good deal of questions. Best way to judge students!
Tips: -NIL-
Duration: 90 minutes
Total Questions: 29
Round: Technical Interview
Experience: Very good experience. Interviewers were really friendly and encouraged students.
Tips: -NIL-
General Tips: -NIL-
Skill Tips: -NIL-
Skills: Quant+Math, Machine Learning, Computer Science
Duration: 3
College Name: IIT Madras
Motivation: Goldman Sachs is one of the company where you get opportunity to implement your ideas as soon as you are capable.
Funny Moments: -NIL-
Experience: Good deal of questions. Best way to judge students!
Tips: -NIL-
Duration: 90 minutes
Total Questions: 29
Round: Technical Interview
Experience: Very good experience. Interviewers were really friendly and encouraged students.
Tips: -NIL-
General Tips: -NIL-
Skill Tips: -NIL-
Skills: Quant+Math, Machine Learning, Computer Science
Duration: 3
College Name: IIT Madras
Motivation: Goldman Sachs is one of the company where you get opportunity to implement your ideas as soon as you are capable.
Funny Moments: -NIL-
I applied via Campus Placement
3 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: Interesting test, not rigorous but tricky/popular questions. Unfamiliar terms in CS and ML. Attempted all except coding question, second-guessed unknown questions
Duration: 90 minutes
Total Questions: 29
Round: Technical Interview
Experience: Only a single round of around 45-50 minutes. Asked about basic probability, questions from coursework, and a simple logical puzzle which builded up as each part was answered (two lane channel in which two agents are approaching each other on the same lane, each has a sensor to detect incoming agents in same lane, paired with switching capability. But switching is non-directional, i.e., both A and B will switch and still be on a collision course- problem was to introduce stochasticity into the process etc etc)
General Tips: From feedback of friends, many puzzles asked directly from book mentioned (with possibly some variation).
Skills: Logical Reasoning, Probability And Statistics
Duration: 2
College Name: IIT Madras
Funny Moments: Interview from 8-9 am, waited for second round till 3 pm, then got to know that interview are over and final discussion would begin. Had no hope
Experience: Interesting test, not rigorous but tricky/popular questions. Unfamiliar terms in CS and ML. Attempted all except coding question, second-guessed unknown questions
Duration: 90 minutes
Total Questions: 29
Round: Technical Interview
Experience: Only a single round of around 45-50 minutes. Asked about basic probability, questions from coursework, and a simple logical puzzle which builded up as each part was answered (two lane channel in which two agents are approaching each other on the same lane, each has a sensor to detect incoming agents in same lane, paired with switching capability. But switching is non-directional, i.e., both A and B will switch and still be on a collision course- problem was to introduce stochasticity into the process etc etc)
General Tips: From feedback of friends, many puzzles asked directly from book mentioned (with possibly some variation).
Skills: Logical Reasoning, Probability And Statistics
Duration: 2
College Name: IIT Madras
Funny Moments: Interview from 8-9 am, waited for second round till 3 pm, then got to know that interview are over and final discussion would begin. Had no hope
I applied via Campus Placement
5 Interview Rounds
Interview Questions
- Q1. 25 horses puzzle
Interview Preparation Tips
Round: Test
Tips: Concentrate on one topic properly
Duration: 90 minutes
Total Questions: 20
Skills: Basic Coding, Logical Reasoning, Aptitude, Probabiity
Duration: 2
College Name: IIT Madras
Tips: Concentrate on one topic properly
Duration: 90 minutes
Total Questions: 20
Skills: Basic Coding, Logical Reasoning, Aptitude, Probabiity
Duration: 2
College Name: IIT Madras
I applied via Campus Placement
7 Interview Rounds
Interview Questions
- Q1. Linked list Algorithms
- Q2. Queue based questions
- Q3. Probability based questions
Interview Preparation Tips
Round: Resume Shortlist
Tips: Know all your course projects well.
Round: Test
Experience: Solved mostly quant section.
Tips: Solving at least one of the sections well will suffice.
Round: Technical Interview
Experience: Wasn't able to answer some fully .
Tips: Know all technical details of your course projects .
Round: Puzzle Interview
Experience: Had to re-think again of all the possibilities .
Tips: Think of all possible ways . do not hurry towards the answer . approach to the problem is mainly what they see
General Tips: Know everything you wrote in the resume . do not hurry towards an answer . don't be biased in yhinking
Skills: Probabiity
Duration: 2
College Name: IIT Madras
Motivation: The profile of the company
Tips: Know all your course projects well.
Round: Test
Experience: Solved mostly quant section.
Tips: Solving at least one of the sections well will suffice.
Round: Technical Interview
Experience: Wasn't able to answer some fully .
Tips: Know all technical details of your course projects .
Round: Puzzle Interview
Experience: Had to re-think again of all the possibilities .
Tips: Think of all possible ways . do not hurry towards the answer . approach to the problem is mainly what they see
General Tips: Know everything you wrote in the resume . do not hurry towards an answer . don't be biased in yhinking
Skills: Probabiity
Duration: 2
College Name: IIT Madras
Motivation: The profile of the company
I applied via Campus Placement
3 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: Nice experience. Great questions that really triggered your brain. Make sure that you ace at least one section.
Duration: 60 minutes
Total Questions: 29
Round: Technical Interview
Experience: Fun. A lot of questions on probability, linear algebra and coding. Optimisation of algorithm.
They teach you topics and probe you to see how far a large you are.
Tips: Keep calm. You don't have to know the answers to all questions to get selected
General Tips: It's all about keeping a cool head and solving questions. That's ALL you need to do. It's mostly things that your know.
Skills: Aptitude, Programming Skills In Any Language Like C, Linear Algebra, Probability And Statistics
Duration: 2
College Name: IIT Madras
Motivation: Good work culture. Mobility inside the organisation. Recognition.
Funny Moments: Why not a higher CG.
Experience: Nice experience. Great questions that really triggered your brain. Make sure that you ace at least one section.
Duration: 60 minutes
Total Questions: 29
Round: Technical Interview
Experience: Fun. A lot of questions on probability, linear algebra and coding. Optimisation of algorithm.
They teach you topics and probe you to see how far a large you are.
Tips: Keep calm. You don't have to know the answers to all questions to get selected
General Tips: It's all about keeping a cool head and solving questions. That's ALL you need to do. It's mostly things that your know.
Skills: Aptitude, Programming Skills In Any Language Like C, Linear Algebra, Probability And Statistics
Duration: 2
College Name: IIT Madras
Motivation: Good work culture. Mobility inside the organisation. Recognition.
Funny Moments: Why not a higher CG.
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