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Bain & Company Interview Questions and Answers
Bain & Company Interview Experiences
111 interviews found
Kumar Akash
I appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. Round 1 - Director Connect It was really a wonderful experience connecting with someone in Bain and in the level of Director. The interview was quiet relaxed and very friendly person. The main focus of thi...
- Q2. Round 2 - Technical Manager This round was also comparatively very easy but I was thinking otherwise(that a lot of technical questions will be asked) instead it was also very easy and ruined it by not prep...
Interview Preparation Tips
Anonymous
Aptitude test consisting of many Data Interpretation questions and general quant
(1 Question)
- Q1. Estimate the annual sale of razor blades in India
- Ans.
Estimating annual razor blade sales in India involves market size, population, and usage patterns.
Population: India has approximately 1.4 billion people, with a significant portion being male, who are the primary users of razor blades.
Market Penetration: Assume around 50% of the male population uses razor blades regularly, leading to an estimated 350 million users.
Usage Frequency: If each user replaces their razor blad...
It's a general business case study round, however I was rejected in the previous round
Interview Preparation Tips
I applied via LinkedIn and was interviewed in Jun 2024. There were 6 interview rounds.
It was an hour-long coding round, asked questions on basic pandas slicing dicing, building simple regression model, handling class imbalance in SVM
(1 Question)
- Q1. Mostly resume based, went deep into projects and asked basics of ML algorithms, ML Ops and OOPS concepts
(1 Question)
- Q1. Resume based questions, basics of Machine Learning, and small case study (problem formulation and feature brainstorming)
(1 Question)
- Q1. Different types of ML models, how they work, differences among them. Types of performance metrics, pros and cons of them, etc.
- Ans.
Different types of ML models, how they work, differences among them, types of performance metrics, pros and cons.
Types of ML models include linear regression, decision trees, support vector machines, neural networks, etc.
ML models work by learning patterns from data to make predictions or decisions.
Differences among models include complexity, interpretability, scalability, and performance.
Performance metrics for ML mod...
Develop a solution for inventory optimization of a Shoe retailer. Forecast sales and plan inventory at a store level for a national seller.
Why you want to join the company, Simple case (how do you use analytics to clear stock of a particular seasonal product after the peak season).
Interview Preparation Tips
- I made the mistake of spending too much time on this alongside my busy job. Even though all the interviews went very well, I did not receive the job offer and they just sent me a simple rejection template email after I invested 2 months of my time and had given 6 rounds of interviews.
- I don't know how the culture at the company is, if it is not decent enough to send me the feedback (even after requesting it) given that I invested so much of my time and even the interviewers were impressed with my interviews.
Skills evaluated in this interview
Selected
- Q1. What are the evaluation metrics used in Machine Learning, including their nuances, edge cases, and robustness?
- Ans.
Evaluation metrics in ML assess model performance, guiding improvements and ensuring reliability across various scenarios.
Accuracy: Measures the proportion of correct predictions. Useful for balanced datasets but misleading for imbalanced ones.
Precision: The ratio of true positives to the sum of true positives and false positives. Important in scenarios like spam detection.
Recall (Sensitivity): The ratio of true positi...
- Q2. Questions on RAG, Prompting techniques
What people are saying about Bain & Company
I applied via Company Website and was interviewed in Aug 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Project related discussions
- Q2. Meduim level SQl and DSA
(2 Questions)
- Q1. This was data modelling round
- Q2. Design a uber data model
- Ans.
Uber data model design for efficient storage and retrieval of ride-related information.
Create tables for users, drivers, rides, payments, and ratings
Include attributes like user_id, driver_id, ride_id, payment_id, rating_id, timestamp, location, fare, etc.
Establish relationships between tables using foreign keys
Implement indexing for faster query performance
Interview Preparation Tips
Skills evaluated in this interview
I applied via Approached by Company and was interviewed in Jun 2024. There was 1 interview round.
(3 Questions)
- Q1. Amazon SDK Related question: The question was Vague and seems to be copied from AI tools. The interviewer had little to no knowledge on programming. Since it's a consulting firm and not tech heavy, it's be...
- Q2. System design question: The interviewer had no knowledge of the NVA, Virtual network subnetting principles and best practices or security as expected from a consulting firm.
- Q3. 5 DSA question in 45 minutes. The interviewer was not interested in taking the interview and didn't even explain the question or clear any doubts.
Interview Preparation Tips
Mayur Kumar
I applied via Campus Placement and was interviewed in Jul 2024. There were 3 interview rounds.
It was a 1 hour test. It consists of two sections (i) 8 ques were of Business case studies (ii) 12 ques were of quantitative aptitude.
(2 Questions)
- Q1. What is the difference between where and having clause ?
- Ans.
Where clause is used to filter rows before grouping, while having clause is used to filter groups after grouping.
Where clause is used with SELECT, UPDATE, DELETE statements to filter rows based on a condition.
Having clause is used with GROUP BY statement to filter groups based on a condition.
Where clause is applied before grouping, while having clause is applied after grouping.
Example: SELECT * FROM table_name WHERE co...
- Q2. One ques was a guesstimate problem.
(2 Questions)
- Q1. Self Introduction.
- Q2. Business case problem which was to be solved in 15 minutes.
Interview Preparation Tips
- SQL
- Maths
Skills evaluated in this interview
Hard level maths and reasoning
(2 Questions)
- Q1. Guesstimate of total contribution of foreign traveller in Indian economy
- Ans.
Foreign travelers contribute significantly to the Indian economy through spending on accommodation, transportation, shopping, dining, and attractions.
Foreign travelers contribute to the Indian economy through spending on accommodation, transportation, shopping, dining, and attractions.
Tourism sector accounts for a significant portion of India's GDP and job creation.
Foreign exchange earnings from tourism play a crucial ...
- Q2. Puzzle questions regarding no of doors open and some scenarios
(3 Questions)
- Q1. Basics about yourself
- Q2. Question around python sql joins etc
- Q3. Scenario based questions
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.
Quants and basic dilr
(3 Questions)
- Q1. Why consulting as a job?
- Ans.
Consulting offers diverse challenges, opportunities to work with various industries, and continuous learning.
Opportunity to work with a variety of industries and clients
Constantly learning and developing new skills
Solving complex problems and providing valuable insights
Exposure to different business environments and challenges
- Q2. No of fans sold in india annually
- Ans.
The number of fans sold in India annually varies depending on market demand and economic factors.
Sales of fans in India are influenced by factors such as population growth, urbanization, and disposable income levels.
Major fan manufacturers in India include companies like Orient Electric, Crompton Greaves, and Usha International.
The demand for energy-efficient fans has been increasing in recent years due to rising aware...
- Q3. What is z test
- Ans.
Z test is a statistical test used to determine if there is a significant difference between the means of two groups.
Z test is used when the sample size is large and the population standard deviation is known.
It compares the means of two groups by calculating the z-score and determining the probability of obtaining that result by chance.
The z-score is calculated as the difference between the sample mean and the populati...
I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.
DATA INTERPREATION 20 QUESTIONS 1 HOUR TIME
(2 Questions)
- Q1. WHY DID YOU CHOOSE THIS COE?
- Ans.
I chose this COE because of its strong reputation in the industry and the opportunity to work with cutting-edge technology.
Reputation of the COE in the industry
Opportunity to work with cutting-edge technology
Alignment of COE's goals with my career aspirations
- Q2. NO. OF BICYCLES SOLD IN DELHI?
- Ans.
The number of bicycles sold in Delhi is not available.
Data on the number of bicycles sold in Delhi is not provided
It would require access to sales data from bicycle retailers in Delhi
Market research or government statistics may have this information
Interview Preparation Tips
Bain & Company Interview FAQs
Some of the top questions asked at the Bain & Company interview -
The duration of Bain & Company interview process can vary, but typically it takes about less than 2 weeks to complete.
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Associate
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|  ₹14 L/yr - ₹23.5 L/yr |
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Senior Associate
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| ₹16.8 L/yr - ₹27 L/yr |
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Project Lead
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| ₹35 L/yr - ₹61.2 L/yr |
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