Bain & Company Interview Questions, Process, and Tips

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...read more
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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.
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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.
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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.

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...read more
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Q2. One ques was a guesstimate problem.
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Q1. Self Introduction.
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Q2. Business case problem which was to be solved in 15 minutes.
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Hard level maths and reasoning

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 ...read more
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Q2. Puzzle questions regarding no of doors open and some scenarios
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Q1. Basics about yourself
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Q2. Question around python sql joins etc
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Q3. Scenario based questions
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Quants and basic dilr

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
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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...read more
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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...read more
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DATA INTERPREATION 20 QUESTIONS 1 HOUR TIME

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
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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
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DILR questions very easy

Q1. Guesstimates market sizing
Ans. 
Estimate the size of the market by making educated guesses based on available information
• Start by identifying the total population or target demographic

• Estimate the percentage of the population that would be interested in the product or service

• Consider factors such as market trends, competition, and potential growth opportunities

• Use industry reports, surveys, and data analysis to support your estimates
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Q2. Tell me about yourself
Ans. 
Experienced consultant with a background in business strategy and project management.
• Over 5 years of experience in consulting roles

• Specialize in developing and implementing business strategies

• Skilled in project management and client relationship management

• Previously worked with Fortune 500 companies on large-scale projects
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Case study on market entry

It was a short online test. Only 20 questions in an hour. Mostly data interpretation and behavioral questions were there.

Q1. Estimate number of iPhones sold in India in a year.
Ans. 
It is difficult to provide an accurate estimate without specific sales data, but we can make an educated guess based on market trends and previous sales figures.
• Consider the overall smartphone market share of Apple in India

• Look at historical sales data of iPhones in India

• Analyze the impact of new iPhone releases on sales numbers

• Take into account any promotional campaigns or discounts offered by Apple in India
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Q1. Estimate number of ACs sold in Shimla
Ans. 
Estimating the number of ACs sold in Shimla requires analyzing market trends, population demographics, and sales data from retailers.
• Research market trends and consumer preferences in Shimla

• Analyze population demographics to understand potential demand for ACs

• Collect sales data from retailers in Shimla to estimate the number of ACs sold

• Consider factors like climate, income levels, and competition in the AC market

• Use st...read more
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