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: 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: A rich merchant had collected many gold coins. He did not want anybody to know about them. One day his wife asked, "How many gold coins do we have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers."The wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have?
Q: Suppose a newly-born pair of rabbits, one male, one female, are put in a field. Rabbits are able to mate at the age of one month so that at the end of its second month a female can produce another pair of rabbits. Suppose that our rabbits never die and that the female always produces one new pair (one male, one female) every month from the second month on.
Q: There are two balls touching each other circumferencically. The radius of the big ball is 4 times the diameter of the small all. The outer small ball rotates in anticlockwise direction circumferencically over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. What is 'N' for the horizontal line from the centre of small wheel always is horizontal.
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: 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: 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: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
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: Give two dice - one is a standard dice, the other is blank (nothing painted on any of the faces). The problem is to paint the blank dice in such a manner so that when you roll both of them together, the sum of both the faces should lie between 1 and 12. Numbers from 1-12 (both inclusive) equally likely.
Q: Raj has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Raj has 2 and 1/2 times as many rings as pins, and the number of pairs of earrings is 4 less than the number of rings. How many earrings does Raj have?...
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: Consider a series in which 8 teams are participating. each team plays twice with all other teams. 4 of them will go to the semi final. How many matches should a team win, so that it will ensure that it will go to semi finals.?
Q: Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?
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)
