About signify
Company Description
Signify, formerly known as Philips Lighting, is a global leader in lighting solutions that harnesses the power of light to improve lives and create a sustainable future. With a commitment to innovation and sustainability, Signify provides a wide range of connected lighting products, systems, and services designed for various sectors including professional, consumer, and horticultural markets. The company promotes a culture of creativity and collaboration, where employees are empowered to share ideas and take initiative. Signify values diversity and inclusion, fostering an environment where every employee feels respected and engaged. The company is also dedicated to achieving carbon neutrality and has set ambitious sustainability targets to drive positive change in the world.
Software Engineer Interview Questions
Q1: Can you describe your experience with software development methodologies?
I have experience working with Agile and Scrum methodologies, which emphasize iterative development and collaboration. I prefer to work in sprints, allowing for regular updates and feedback from stakeholders.
Q2: What programming languages are you proficient in?
I am proficient in Java, Python, and JavaScript. I have used these languages in various projects for both front-end and back-end development.
Q3: How do you prioritize tasks in a software development project?
I prioritize tasks based on project deadlines, dependencies, and the impact on overall functionality. I also consider input from stakeholders and team members to ensure alignment with project goals.
Q4: Can you provide an example of a challenging software problem you faced and how you solved it?
In a previous project, I encountered performance issues with a database query. I analyzed the query plan, optimized indexes, and refactored the code, resulting in a significant performance improvement.
Q5: How do you ensure the quality of your code?
I follow best practices such as writing unit tests, conducting code reviews, and using static analysis tools. I also ensure that my code is well-documented for better maintainability.
Product Manager Interview Questions
Q1: What is your approach to defining a product roadmap?
I start by gathering input from stakeholders, analyzing market trends, and assessing customer feedback. This helps me identify priorities and align the roadmap with business objectives.
Q2: How do you handle competing priorities from different stakeholders?
I facilitate discussions to understand the needs of each stakeholder and use data to support prioritization. Establishing a clear framework helps in making informed decisions that align with the company’s goals.
Q3: Can you describe a successful product launch you managed?
I led the launch of a new smart lighting product that involved cross-functional collaboration. We conducted market research, developed marketing strategies, and achieved a 30% increase in sales within the first quarter post-launch.
Q4: How do you measure the success of a product?
I measure success using key performance indicators (KPIs) such as customer satisfaction, market share, and revenue growth. I also gather qualitative feedback from users to understand their experiences.
Q5: What strategies do you use to stay informed about industry trends?
I subscribe to relevant publications, attend industry conferences, and participate in professional networks. I also encourage my team to share insights and ideas to foster a culture of continuous learning.
Electrical Engineer Interview Questions
Q1: What experience do you have with lighting design and electrical systems?
I have several years of experience in designing lighting systems for commercial spaces, focusing on energy efficiency and compliance with local regulations. I also have hands-on experience with electrical circuit design.
Q2: How do you ensure safety and compliance in your electrical designs?
I stay updated on relevant electrical codes and standards, conduct thorough risk assessments, and perform regular testing to ensure that all designs meet safety requirements.
Q3: Can you describe a project where you had to troubleshoot an electrical issue?
In a recent project, we faced flickering lights due to a faulty circuit. I systematically tested the wiring and components, identified the issue, and implemented a solution that resolved the problem without affecting the project timeline.
Q4: What tools or software do you use in your design work?
I commonly use AutoCAD for drafting and design, along with simulation software like MATLAB for analyzing electrical systems. I’m also familiar with project management tools to track progress.
Q5: How do you collaborate with other teams on engineering projects?
I maintain open lines of communication with cross-functional teams, participating in regular meetings and using collaborative tools to share updates. This ensures that everyone is aligned and working towards common goals.
Marketing Specialist Interview Questions
Q1: What strategies do you use to develop a successful marketing campaign?
I start by defining clear objectives, identifying target audiences, and conducting market research. Then, I create a comprehensive marketing plan that includes various channels, such as digital marketing, social media, and events.
Q2: How do you measure the effectiveness of a marketing campaign?
I use metrics like conversion rates, website traffic, and engagement levels. I also analyze customer feedback and conduct A/B testing to refine strategies and improve future campaigns.
Q3: Can you provide an example of a marketing initiative you led that exceeded expectations?
I spearheaded a digital campaign that utilized influencer partnerships and targeted ads, resulting in a 50% increase in brand awareness and a significant boost in lead generation over a three-month period.
Q4: How do you stay current with marketing trends and tools?
I regularly read industry blogs, participate in webinars, and attend marketing conferences. I also network with other marketing professionals to exchange ideas and best practices.
Q5: How do you handle tight deadlines and multiple projects?
I prioritize tasks based on urgency and importance, breaking projects into manageable parts. I also communicate proactively with my team to ensure we stay on track and meet deadlines.
Sales Executive Interview Questions
Q1: What strategies do you use to build relationships with clients?
I focus on understanding clients' needs and providing tailored solutions. I also maintain regular communication and follow-up to build trust and ensure long-term partnerships.
Q2: Can you describe a time when you successfully closed a difficult sale?
I worked with a hesitant client by addressing their concerns through detailed presentations and case studies. After several discussions, I was able to demonstrate the value of our solutions, ultimately leading to a successful sale.
Q3: How do you handle rejection or objections from clients?
I view rejection as an opportunity to learn. I listen to clients' objections carefully, seek to understand their concerns, and respond with relevant information or solutions to overcome their hesitations.
Q4: What tools do you use for sales tracking and management?
I use Customer Relationship Management (CRM) software to track leads, manage customer interactions, and analyze sales performance. This helps me stay organized and focused on my sales targets.
Q5: How do you stay motivated in a competitive sales environment?
I set personal goals and celebrate small wins to maintain motivation. I also stay connected with my team, sharing successes and learning from challenges to keep our spirits high.
Conclusion Interview Questions
Signify is a dynamic and innovative company committed to sustainability and enhancing lives through lighting solutions. With a supportive and collaborative work culture, employees are encouraged to thrive and contribute to meaningful projects that drive the company's mission forward.
Company Background and Industry Position
Signify, formerly known as Philips Lighting, stands as a global leader in lighting solutions, pushing innovation in connected LED lighting systems and smart technology integration. The company’s footprint spans across multiple continents, serving diverse markets including residential, commercial, and industrial sectors. What sets Signify apart in the competitive lighting industry is its relentless commitment to sustainability and smart city initiatives, which aligns with the growing demand for eco-friendly and IoT-enabled lighting products.
Understanding Signify’s market stance is crucial for candidates because the company values innovation and agility. This directly influences its recruitment outlook, which favors professionals who thrive in fast-evolving tech environments and who bring a mindset geared towards environmental responsibility. For those looking to join, it’s not just about fitting into a corporate mold but about being part of a company shaping the future of lighting technology.
How the Hiring Process Works
- Application Review: It starts with recruiters sifting through resumes to identify candidates who match the eligibility criteria and job roles requested. Given Signify’s global scale, this stage is quite competitive, often filtering out those who lack relevant experience or specialized skills.
- Initial HR Screening: A recruiter reaches out, typically for a phone or video chat. This isn’t just about affirming qualifications but assessing cultural fit and motivation. Candidates can expect questions about why Signify, and how their career aspirations align with the company’s vision.
- Technical Interview Round(s): Depending on the role—software engineer, project manager, or sales executive—these rounds vary in content but consistently challenge candidates on their domain expertise and problem-solving ability. These can be live coding sessions, case studies, or situational problem-solving interviews.
- Managerial/Panel Interview: This step dives deeper into behavioral competencies and leadership potential. Interviewers evaluate how candidates handle challenges, communicate, and collaborate. It’s often a blend of competency-based questions and discussions about past projects.
- Offer and Negotiation: Successful candidates receive an offer outlining salary, benefits, and other terms. Negotiations here can be intricate, reflecting both market standards and individual experience.
Each phase serves a purpose beyond just filtering; Signify aims to ensure the candidate fits both the technical demands and the cultural fabric. The process might seem lengthy but reflects the company’s cautious approach to securing long-term hires.
Interview Stages Explained
Initial HR Interview
This stage often feels like a first date—both sides sizing each other up. Candidates should expect open-ended questions such as “What attracts you to Signify?” or “Tell me about a time you faced a significant obstacle.” The recruiter is evaluating communication skills, enthusiasm, and basic eligibility criteria. At this point, candidates can gauge the company's values and decide if the match feels right.
Technical Interview
Here’s where the real testing begins. Candidates invited to this round should brace for challenging questions tailored to their role. For engineers, this might include algorithm problems or system design questions. For product managers, expect case studies simulating real-world business challenges. The goal is to assess not only what you know but how you approach problems under pressure. Interviewers look for clear thought processes and practical solutions, not just textbook answers.
Managerial or Panel Interview
This stage is heavier on behavioral evaluation and leadership potential. Panel members probe into decision-making, teamwork, and adaptability. Questions often start broad: “Describe a project where you led a team through uncertainty,” but then delve into specifics to test authenticity. Candidates usually notice a shift in tone here; it becomes more conversational and reflective, which can feel both intimidating and insightful.
Examples of Questions Candidates Report
- “Explain a complex technical problem you solved and the steps you took.”
- “How do you prioritize tasks when managing multiple projects?”
- “What do you understand about Signify’s approach to sustainability?”
- “Describe a time you had a conflict in your team and how you handled it.”
- “Walk me through a coding challenge involving data structures.”
- “How would you handle a client who is resistant to adopting new lighting technology?”
- “What motivates you to work in a global company like Signify?”
These questions showcase the dual emphasis on technical prowess and cultural fit. Candidates often remark that preparing anecdotes and real examples beforehand is critical. Vague responses rarely impress.
Eligibility Expectations
Signify typically expects candidates to have a relevant educational background—often a bachelor’s or master’s degree in engineering, business, or design disciplines depending on the role. Experience requirements vary: entry-level roles demand internships or projects demonstrating applied skills, while senior positions call for multiple years of industry experience and leadership history.
Beyond academics and experience, Signify values soft skills such as adaptability, communication, and a passion for sustainability. For global roles, proficiency in English and sometimes additional languages can be a hard criterion. Candidates lacking in any key area might find it challenging to progress, though the company sometimes considers potential and learning agility for junior positions.
Common Job Roles and Departments
Signify’s business spans various departments reflecting its integrated approach:
- Research & Development: Engineers and scientists working on next-gen lighting tech and IoT solutions.
- Sales & Marketing: Professionals responsible for client acquisition, market analysis, and brand positioning.
- Operations & Supply Chain: Ensuring manufacturing efficiency and product delivery on a global scale.
- IT & Software Development: Focused on software platforms, cloud solutions, and smart lighting applications.
- Corporate Functions: HR, Finance, Legal, supporting the company’s strategic goals.
Understanding the nuances of your desired department can heavily influence how you prepare for interview rounds, especially technical and managerial ones. For instance, software roles lean towards coding and systems thinking, while sales roles emphasize client interaction scenarios and negotiation strategies.
Compensation and Salary Perspective
| Role | Estimated Salary |
|---|---|
| Software Engineer | $70,000 - $110,000 |
| Project Manager | $80,000 - $130,000 |
| Sales Executive | $60,000 - $100,000 + Commission |
| R&D Scientist | $75,000 - $120,000 |
| Supply Chain Analyst | $55,000 - $90,000 |
These figures are approximate and depend heavily on location, experience, and specific job responsibilities. Candidates should note that Signify also offers performance incentives and benefits that complement the base salary, which are a significant part of total compensation. Transparency varies by region, so it’s wise to gather local market data as well.
Interview Difficulty Analysis
Many candidates find Signify’s interview process moderately challenging. The technical rounds, in particular, require readiness not just in theory but in practical application. Unlike some companies that focus solely on technical tests, Signify combines technical rigor with behavioral and situational assessments, making the overall difficulty higher for those who underestimate the holistic approach.
Interviewees often say the hardest part is the technical interview’s emphasis on real-world problems rather than textbook examples. It’s less about memorized answers and more about adapting knowledge creatively. The HR rounds are generally straightforward but can catch candidates off guard if they're unprepared to discuss motivation and cultural alignment.
Preparation Strategy That Works
- Understand Signify’s core business, sustainability goals, and recent innovations—a broad familiarity helps craft tailored responses.
- Practice solving realistic technical problems relevant to your field; for coding roles, platforms like LeetCode or HackerRank offer useful simulation.
- Prepare STAR method stories (Situation, Task, Action, Result) to effectively answer behavioral and managerial interview questions.
- Research common industry challenges in lighting and IoT to demonstrate domain awareness during discussions.
- Mock interviews with peers or mentors can help identify gaps in communication and problem-solving under pressure.
- Stay calm and curious—interviews at Signify often value thoughtful questions from candidates, reflecting genuine interest.
Work Environment and Culture Insights
Signify fosters a culture that blends innovation with care. Employees frequently describe the environment as collaborative but driven, where ideas are encouraged regardless of hierarchy. There’s a palpable focus on sustainability, which resonates deeply with teams involved in product development and strategy. The company supports flexible work arrangements, especially post-pandemic, highlighting a modern approach to work-life balance.
That said, the fast pace and global nature can sometimes create pressure, especially in project-driven teams. Candidates often notice that resilience and adaptability are prized—and if you’re someone who thrives in structured yet dynamic settings, you’ll likely fit well.
Career Growth and Learning Opportunities
Signify invests significantly in employee development through structured training programs, cross-functional projects, and leadership workshops. Employees often find themselves exposed to cutting-edge technology and international markets early in their careers. Internal mobility is encouraged, allowing talent to shift across departments or regions.
This commitment to growth is not just lip service; candidate interviews often include questions about long-term goals to ensure alignment with available career paths. If you’re looking for a company where learning is continuous and promotions are merit-based, Signify presents a compelling option.
Real Candidate Experience Patterns
From observing hundreds of candidate feedback threads, a few patterns emerge:
- Many appreciate the transparency and professionalism of Signify’s recruiters, noting clear communication throughout hiring rounds.
- The technical interview can feel unpredictable — some report very scenario-based questions, while others experience traditional problem-solving tasks.
- Some candidates mention the importance of tailoring answers to Signify’s sustainability mission, as generic tech responses don’t always resonate.
- The lengthy recruitment rounds can be draining, but most understand that this thoroughness indicates the company’s seriousness about fit.
- Successful candidates often highlight their preparation on both technical skills and cultural understanding as the key to success.
Comparison With Other Employers
| Aspect | Signify | Typical Competitor |
|---|---|---|
| Recruitment Rounds | 5 (including HR, technical, managerial) | 3-4, often more streamlined |
| Technical Rigor | Moderate to high, practical problem focus | Varies, some more theoretical |
| Cultural Emphasis | Strong, especially sustainability and innovation | Varies, some focus more on performance |
| Candidate Experience | Generally positive with clear communication | Mixed, some report less transparency |
| Salary Competitiveness | Market-aligned with good benefits | Varies widely |
Compared to peers in lighting and tech sectors, Signify’s process is comprehensive but fair. If you value a company with a distinct mission and a methodical hiring style, you may find it preferable over faster but less engaged competitors.
Expert Advice for Applicants
Don’t just prep for the interview—prep for the company. Dive into Signify’s product lines, sustainability reports, and news releases to talk knowledgeably. When faced with interview questions, always link back your skills to how they can contribute to Signify’s goals. Remember, technical mastery is just one piece of the puzzle.
Practice articulating your thought process clearly during problem-solving. Recruiters appreciate candidates who don’t merely jump to answers but explain their reasoning step-by-step. And, don’t underestimate the HR rounds; your attitude and cultural fit could tip the scales.
Lastly, patience is key. The process may stretch over weeks, but persistence and ongoing engagement can demonstrate your genuine interest.
Frequently Asked Questions
What kind of technical interview questions can I expect at Signify?
Expect questions tailored to your role. For software engineers, algorithmic challenges, coding exercises, and system design problems are common. For product-related roles, case studies and situational problem-solving dominate. The focus is on practical application, not just theory.
How long does the Signify recruitment process usually take?
It varies, but typically it spans 3-6 weeks from application to offer. Delays can happen due to scheduling or internal decision-making. Candidates often find that regular communication from recruiters helps manage expectations.
Are there any specific eligibility criteria I should know about?
Yes, a relevant degree and experience aligned with the job role are essential. Additionally, candidates need strong communication skills, especially for global positions. Familiarity with sustainability concepts and innovation is a plus.
Does Signify offer remote work options?
Post-pandemic, Signify has embraced flexible and hybrid work models, depending on the role and location. It’s best to clarify during the interview process what the expectations are for your specific position.
What is the salary range at Signify?
Salary varies widely based on role, experience, and geography. As a ballpark, engineers might earn between $70,000 and $110,000 annually, while managerial roles command higher brackets. Benefits and incentives add to the overall package.
Final Perspective
Landing a role at Signify is more than passing a series of interviews; it’s about aligning your career narrative with a company that’s shaping the future of lighting and sustainability. The recruitment process reflects this—thorough, thoughtful, and multifaceted. It pushes candidates to demonstrate technical competence, adaptability, and values compatibility.
It’s not always easy. The technical interviews can challenge even well-prepared candidates, and the emphasis on culture means you need to be authentic and reflective. But for those who crack the code, Signify offers a dynamic environment filled with growth prospects, innovative projects, and a chance to make a tangible impact on the world’s energy footprint.
So, if you’re ready to join a company that values both brain and heart, preparing with insight and intention is the way forward. Good luck!
signify Interview Questions and Answers
Updated 21 Feb 2026Data Analyst Interview Experience
Candidate: Emily Zhang
Experience Level: Junior
Applied Via: Employee referral
Difficulty:
Final Result: Rejected
Interview Process
3 rounds
Questions Asked
- Explain how you would clean a messy dataset.
- What tools do you use for data visualization?
- Describe a project where your analysis impacted business decisions.
- Write a SQL query to find the top 5 products by sales.
Advice
Practice SQL and be ready to discuss your analytical projects in detail.
Full Experience
The technical round was challenging with SQL and case study questions. The team was friendly but expected strong technical skills and business insight.
Sales Manager Interview Experience
Candidate: David Kim
Experience Level: Mid-level
Applied Via: LinkedIn application
Difficulty:
Final Result:
Interview Process
3 rounds
Questions Asked
- How do you approach building relationships with new clients?
- Describe a time you exceeded your sales targets.
- What strategies would you use to sell smart lighting solutions?
- How do you handle rejection in sales?
Advice
Highlight your sales achievements and understand the product benefits well.
Full Experience
The interviews included HR screening, a sales scenario role-play, and a final discussion with the regional manager. They valued my real-world sales experience and communication skills.
Electrical Engineer Interview Experience
Candidate: Cynthia Gomez
Experience Level: Entry-level
Applied Via: Campus recruitment
Difficulty:
Final Result:
Interview Process
2 rounds
Questions Asked
- What are the key components of an LED lighting circuit?
- Explain Ohm's Law.
- Describe a project you worked on during your internship.
Advice
Review basic electrical engineering concepts and be ready to discuss your academic projects.
Full Experience
The first round was a written test on fundamentals, followed by an interview with the engineering team. The interviewers were friendly and focused on my enthusiasm and willingness to learn.
Product Manager Interview Experience
Candidate: Brian Lee
Experience Level: Senior
Applied Via: Referral
Difficulty:
Final Result: Rejected
Interview Process
4 rounds
Questions Asked
- How do you prioritize features in a product roadmap?
- Describe a time you handled a conflict within your team.
- How would you improve our current smart lighting product?
- Explain your approach to stakeholder management.
Advice
Prepare concrete examples of leadership and product impact, and research the company's products thoroughly.
Full Experience
The interviews were intense, especially the case study round where I had to propose improvements to their smart lighting system. Feedback was that I needed to demonstrate deeper technical understanding.
Software Engineer Interview Experience
Candidate: Alice Johnson
Experience Level: Mid-level
Applied Via: Online application via company website
Difficulty:
Final Result:
Interview Process
3 rounds
Questions Asked
- Explain the difference between REST and SOAP APIs.
- Describe a challenging bug you fixed in your previous project.
- Write a function to reverse a linked list.
Advice
Brush up on data structures and algorithms, and be ready to discuss your past projects in detail.
Full Experience
The first round was a phone screening focusing on my background and motivation. The second was a technical coding interview with problem-solving questions. The final round was with the team lead and involved system design and behavioral questions.
Frequently Asked Questions in signify
Have a question about the hiring process, company policies, or work environment? Ask the community or browse existing questions here.
Common Interview Questions in signify
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 man has a wolf, a goat, and a cabbage. He must cross a river with the two animals and the cabbage. There is a small rowing-boat, in which he can take only one thing with him at a time. If, however, the wolf and the goat are left alone, the wolf will eat the goat. If the goat and the cabbage are left alone, the goat will eat the cabbage. How can the man get across the river with the two animals and the cabbage?
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: 9 cards are there. You have to arrange them in a 3*3 matrix. Cards are of 4 colors. They are red, yellow, blue and green. Conditions for arrangement: one red card must be in first row or second row. 2 green cards should be in 3rd column. Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.
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: 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 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: 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 long, long time ago, two Egyptian camel drivers were fighting for the hand of the daughter of the sheik of Abbudzjabbu. The sheik, who liked neither of these men to become the future husband of his daughter, came up with a clever plan: a race would dete
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: 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: 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.
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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: 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)