About Board Infinity
Board Infinity Interview Questions and Answers
Updated 21 Feb 2026Software Engineer Interview Experience
Candidate: Priya Desai
Experience Level: Junior
Applied Via: Job portal application
Difficulty: Hard
Final Result: Rejected
Interview Process
4
Questions Asked
- Explain OOP concepts.
- Write code to reverse a linked list.
- What is REST API?
- Describe a challenging bug you fixed.
Advice
Practice coding problems and understand system design basics. Prepare to explain your problem-solving approach clearly.
Full Experience
The interview process was rigorous with an online coding test, followed by technical phone interviews and an onsite round. Despite strong preparation, I was not selected due to limited experience.
Marketing Manager Interview Experience
Candidate: Karan Singh
Experience Level: Mid-level
Applied Via: LinkedIn application
Difficulty:
Final Result:
Interview Process
3
Questions Asked
- How would you increase user acquisition for an online learning platform?
- Explain a successful marketing campaign you led.
- How do you analyze marketing ROI?
- Describe your experience with digital marketing tools.
Advice
Prepare case studies of your past campaigns and be familiar with digital marketing metrics.
Full Experience
The process involved an initial HR call, followed by a detailed marketing strategy round. The final interview was with the head of marketing focusing on leadership and execution skills.
Content Developer Interview Experience
Candidate: Sneha Kapoor
Experience Level: Entry-level
Applied Via: Campus recruitment
Difficulty: Easy
Final Result:
Interview Process
2
Questions Asked
- What makes good educational content?
- How do you ensure content accuracy?
- Describe your writing process.
Advice
Show passion for education and strong writing skills. Be ready to provide samples of your work.
Full Experience
The interview was straightforward with HR and then the content team. They focused on my writing skills and understanding of educational content. I was given a small writing task which I completed successfully.
Product Manager Interview Experience
Candidate: Rohit Mehta
Experience Level: Senior
Applied Via: Referral
Difficulty: Hard
Final Result: Rejected
Interview Process
4
Questions Asked
- How do you prioritize product features?
- Describe a time you handled a difficult stakeholder.
- Design a roadmap for a new online learning feature.
- How do you measure product success?
Advice
Prepare for behavioral questions and product design case studies. Demonstrate clear prioritization frameworks.
Full Experience
After a referral, I had an initial HR screening, followed by two rounds of product management case studies. The final round was with the leadership team focusing on strategy and culture fit. Despite good feedback, I was not selected.
Data Scientist Interview Experience
Candidate: Anita Sharma
Experience Level: Mid-level
Applied Via: Online application via company website
Difficulty:
Final Result:
Interview Process
3
Questions Asked
- Explain the difference between supervised and unsupervised learning.
- How would you handle missing data in a dataset?
- Write a SQL query to find the second highest salary in a table.
- Describe a machine learning project you worked on and the challenges faced.
Advice
Brush up on SQL and machine learning fundamentals. Be ready to discuss your past projects in detail.
Full Experience
The process started with an online application, followed by a technical phone screen focusing on data science concepts. The next round was a coding test involving SQL and Python. The final round was an in-person interview with the team, where I discussed my previous projects and solved some case studies.
Frequently Asked Questions in Board Infinity
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Common Interview Questions in Board Infinity
Q: In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on.On the nth and last day, the remaining n medals were awarded.How many days did the contest last, and how many medals were awarded altogether?
Q: A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one directionand the hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely.The hare and tortoise meet when the hare has covered only 1/8 of the distance. By what factor should the hareincrease its speed so as to tie the race?
Q: Consider a pile of Diamonds on a table. A thief enters and steals 1/2 of the total quantity and then again 2 extra from the remaining. After some time a second thief enters and steals 1/2 of the remaining+2. Then 3rd thief enters and steals 1/2 of the remaining+2. Then 4th thief enters and steals 1/2 of the remaining+2. When the 5th one enters he finds 1 diamond on the table. Find out the total no. of diamonds originally on the table before the 1st thief entered.
Q: There are 3 clans in an island - The Arcs who never lie, the Dons who always lie and the Slons who lie alternately with the truth. Once a tourist meets 2 guides who stress that the other is a Slon. They proceed on a tour and see a sports meet. The first guide says that the prizes have been won in the order Don, Arc, Slon. The other says that, the order is Slon, Don, Arc. (the order need not be exact). To which clan did each of the guides and the players belong? ...
Q: 3 policemen and 3 thieves had to cross a river using a small boat. Only two can use the boat for a trip. All the 3 policemen and only 1 thief knew to ride the boat. If 2 thieves and 1 policeman were left behind they would kill him. But none of them escaped from the policemen. How would they be able to cross the river?
Q: 36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the res...
Q: The citizens of planet nigiet are 8 fingered and have thus developed their decimal system in base 8. A certain street in nigiet contains 1000 (in base 8) buildings numbered 1 to 1000. How many 3s are used in numbering these buildings?
Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?
Q: There are 3 sticks placed at right angles to each other and a sphere is placed between the sticks . Now another sphere is placed in the gap between the sticks and Larger sphere . Find the radius of smaller sphere in terms of radius of larger sphere.
Q: ABCDE are sisters. Each of them gives 4 gifts and each receives 4 gifts No two sisters give the same combination ( e.g. if A gives 4 gifts to B then no other sisters can give four to other one.)Â (i) B gives four to A.(ii) C gives 3 to E. How much did A,B,C,E give to D?
Q: There is a room with a door (closed) and three light bulbs. Outside the room there are three switches, connected to the bulbs. You may manipulate the switches as you wish, but once you open the door you can't change them. Identify each switch with its bulb.
Q: The egg vendor calls on his first customer and sells half his eggs and half an egg. To the second customer, he sells half of what he had left and half an egg and to the third customer he sells half of what he had then left and half an egg. By the way he did not break any eggs. In the end three eggs were remaining . How many total eggs he was having ?
Q: Every day a cyclist meets a train at a particular crossing .The road is straight before the crossing and both are travelling in the same direction.Cyclist travels with a speed of 10 kmph.One day the cyclist come late by 25 minutes and meets the train 5 km before the crossing.What is the speed of the train?
Q: A vessel is full of liquid. From the vessel, 1/3rd of the liquid evaporates on the first day. On the second day 3/4th of the remaining liquid evaporates. What fraction of the volume is present at the end of the second day
Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter
Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Q: If I walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late. Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.
Q: There are four dogs/ants/people at four corners of a square of unit distance. At the same instant all of them start running with unit speed towards the person on their clockwise direction and will always run towards that target. How long does it take for them to meet and where?
Q: Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)....
Q: In a country where everyone wants a boy, each family continues having babies till they have a boy. After some time, what is the proportion of boys to girls in the country? (Assuming probability of having a boy or a girl is the same)