Which 2 months in a year has same Calendar

Duration: 15 min

This video lesson is available to enrolled students.

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Inside: a video lesson and guided study material.

Module outline

  1. About the Course: About the Course
  2. Paper-1 & 2 | Basic Numeracy: अनुपात और समानुपात / Ratio and Proportion, Divisibility Rules, मिश्रण और एलिगेशन / Mixture and Alligation, Permutation and Combination, Logarithm, संख्या पद्धति / Number System, महत्तम समापवर्तक और लघुत्तम समापवर्त्य / HCF and LCM, Sequence and Series (Series), समय, चाल और दूरी / Time, Speed and Distance, प्रतिशत / Percentage, औसत / Average, घन क्षेत्रमिति / Solid Mensuration, Age Problems, Arithmetic, Statistics, Probability, लाभ, हानि और बट्टा / Profit, Loss and Discount, साधारण और चक्रवृद्धि ब्याज / Simple and Compound Interest, Partnership, Speed Mathematics and Basic Mathematics, Algebra, सरलीकरण, घातांक और करणी / Simplification, Indices and Surds, समय और कार्य / Time and Work, Pipe and Cistern, RSSB Specific Videos - Basic Numeracy, समुच्चय, संबंध, फलन और विविक्त गणित / Sets, Relations, Functions and Discrete Mathematics, संख्या पद्धति और संख्या सिद्धांत / Number Systems and Number Theory, निर्देशांक ज्यामिति, सदिश और त्रिविमीय ज्यामिति / Coordinate Geometry, Vectors and 3D Geometry, बहुपद, समीकरण और सम्मिश्र संख्याएँ / Polynomials, Equations and Complex Numbers
  3. Paper-1 & 2 | Data Interpretation: आँकड़ा निर्वचन / Data Interpretation
  4. Paper-1 & 2 | General Mental Ability: Mental Ability, RSSB Specific Videos - Mental Ability
  5. Paper-1 & 2 | Logical Reasoning and Analytical Ability: श्रेणी / Series, कूट लेखन एवं कूट वाचन / Coding-Decoding, Data Sufficiency, अशाब्दिक तर्क / Non-Verbal Reasoning, Syllogisms, बैठक व्यवस्था एवं पहेलियाँ / Seating Arrangement and Puzzles, रक्त संबंध / Blood Relations, दिशा एवं दूरी / Direction and Distance, Analytical Reasoning (Counting Figures Reasoning), गणितीय संक्रियाएँ एवं लुप्त संख्या / Mathematical Operations and Missing Numbers, कैलेंडर एवं घड़ी / Calendar and Clock, Clock, घन, पासा एवं आकृतियों की गिनती / Cubes, Dice and Figure Counting, वेन आरेख, न्याय वाक्य एवं असमानता / Venn Diagrams, Syllogism and Inequalities, सादृश्यता एवं वर्गीकरण / Analogy and Classification, क्रम एवं रैंकिंग / Order and Ranking, कथन आधारित तार्किक विवेचन / Statement-Based Reasoning, Data Arrangement, वर्णमाला एवं संख्या परीक्षण / Alphabet and Number Test, Crypt Arithmetic
  6. Paper-1 & 2 | Decision Making and Problem Solving: आँकड़ों की पर्याप्तता एवं निर्णय क्षमता / Data Sufficiency and Decision Making
  7. Paper-1 | General Science: वैज्ञानिक उपलब्धियाँ और अनुसंधान / Scientific Achievements and Research, Biology, Chemistry, RSSB Specific Videos
  8. Paper-1 | General Awareness: राज्य विशेष सामान्य ज्ञान / State-Specific General Knowledge, समसामयिकी / Current Affairs
  9. Paper-2 | Fundamentals of Computer: Basics of COA, Number System, Floating Point Rep, Number Representation
  10. Paper - 2 | Digital Logic Systems: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits
  11. Paper-2 | Operating Systems: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Linux OS, Distributed Systems
  12. Paper-2 | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, Relational Calculus, File Organization & Indexing, Transaction Management, Concurrency Control
  13. Paper-2 | Data Structures: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
  14. Paper-2 | C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  15. Paper 2 | Oops, C++, Java: Language Design, OOPS with C++, Java, .Net Programming, Java Fundamentals
  16. Paper 2 | Python: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  17. Paper 2 | Emerging Trends and AI: Emerging Tech Trends, कंप्यूटर के मूल सिद्धांत / Computer Fundamentals, व्यापार, विपणन एवं उपभोक्ता संरक्षण / Trade, Marketing and Consumer Protection, कंप्यूटर नेटवर्क / Computer Networks
  18. Paper-2 | Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Advanced Algorithms
  19. Paper 2 | Data Communication and Network Security: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Security, Ethical Hacking
  20. Paper-2 I Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  21. Paper-2 | Computer Organization and Architecture: Cache Memory Organization, Input Output Organisation, Instr Formats & Modes, Control Unit Design, Register Transfer and Microoperations
  22. Paper-2 | Web Development: JavaScript-Basics, HTML Basics, CSS, XML
  23. Pedagogy: वृद्धि और विकास / Growth and Development, Concept of Pedagogy, संज्ञानात्मक प्रक्रियाएँ / Cognitive Processes, विकास के सिद्धांत / Theories of Development, समावेशी शिक्षा / Inclusive Education, Experiential Pedagogy, समाजीकरण और जेंडर / Socialisation and Gender, National Education Policy (NEP) 2020
  24. Live Sessions: RSSB Live Sessions
  25. RSSB Paper 1 - Full Mock Tests:
  26. RSSB Paper 2 - Full Mock Tests:
  27. SCI Previous Year Papers:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video is a comprehensive lecture on calendar-based problems, a common topic in competitive exams. The instructor, Yash Jain Sir, systematically explains the concept of 'same calendar' months, which refers to months that start and end on the same day of the week. The lesson begins with a foundational problem: determining the day of the week for June 25, 2015, given that October 1, 2010, was a Monday. The core of the video is a series of practice questions from various IT companies like IBM, TCS, Infosys, and Wipro. The instructor demonstrates a methodical approach to solve these problems by calculating the number of odd days between months. For instance, he explains that two months have the same calendar if the total number of days between them is a multiple of 7. He provides a list of month pairs that share the same calendar, such as January and October, February, March, and November, April and July, and September and December. The video also covers related concepts, including the number of months with 31 days that start and end on the same day, and the number of unique months in a year. The presentation uses a digital blackboard with handwritten notes and diagrams to illustrate the calculations and concepts clearly.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a title slide featuring a calendar and the word 'CALENDAR'. It then transitions to a lecture by Yash Jain Sir, who introduces a problem: '1st October 2010 → Monday, 25th June 2015 → ???'. The slide is titled 'Four Categories' and lists different types of date-related problems. The instructor explains that the video will cover important questions asked in IT companies, with a quiz at the end.

  2. 2:00 – 5:00 02:00-05:00

    The instructor continues to explain the problem of finding the day of the week for June 25, 2015. He introduces the concept of 'same calendar' months, where two months have the same starting and ending days. He presents a list of month pairs that share the same calendar, such as January-October, February-March-November, April-July, and September-December. The slide shows a list of four categories of problems, and the instructor begins to discuss the first two categories: 'Month and Year Same, Date Different' and 'Date and Month Same, Year Different'.

  3. 5:00 – 10:00 05:00-10:00

    The video focuses on a question from IBM: 'Which two months in a year have the same calendar?'. The options are A) June, October, B) April, November, C) April, July, D) April, July, December. The instructor explains that the correct answer is A) June, October, as they have the same calendar. He demonstrates the calculation by showing the number of odd days between the months. He also explains that the list of month pairs with the same calendar is: January-October, February-March-November, April-July, and September-December.

  4. 10:00 – 14:51 10:00-14:51

    The video presents a series of practice questions. The first is from TCS: 'For a non-leap year, how many months have 31 days and start and end on the same day?'. The instructor explains that the answer is 4, corresponding to the pairs January-October, February-March-November, April-July, and September-December. The next question is from Infosys: 'For a non-leap year, how many months have 30 days and start and end on the same day?'. The instructor explains that the answer is 4, with the same pairs. The final question is from Wipro: 'How many unique months does an ordinary year have?'. The instructor explains that the answer is 3, as some months are duplicates. The video concludes with a 'Thanks for Watching' screen.

The video provides a structured and practical guide to solving calendar problems. It begins with a foundational example to establish the concept of 'same calendar' months, then systematically applies this concept to a series of real-world exam questions. The key method demonstrated is calculating the number of odd days between months to determine if they share the same calendar. The instructor uses a consistent framework of listing the month pairs that have the same calendar, which is a powerful tool for quickly solving these types of problems. The progression from basic concepts to complex, multi-part questions ensures a comprehensive understanding of the topic.

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