Short Trick Same Calendar in 2 Years

Duration: 7 min

This video lesson is available to enrolled students.

Return to /learn/BPSC/part-2-primary-maths/calendar/month-replication-and-same-calendar-problems/asset-short-trick-same-calendar-in-2-years-9405 after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About the Course: About the Course
  2. Section 1 | Language (Hindi): भाषा, लिपि और वर्ण, वर्तनी, वर्ण-विन्यास, अनुस्वार, अनुनासिक, चंद्रबिंदु और ‘र’ के रूप, शब्द, पद और शब्द-भेद, संज्ञा और सर्वनाम, पद-भेद और रूप-विकार, लिंग, वचन, पुरुष और कारक, काल, वाच्य, वाक्य और वाक्य-भेद, संधि, समास, विलोम शब्द, पर्यायवाची शब्द, सामान्य अशुद्धियाँ, अनेक शब्दों के लिए एक शब्द, शब्द-भंडार, अपठित बोध, Multi-Topic Content (Cross-Concept Material), वर्णमाला
  3. Section 1 | Language (उर्दू भाषा — 22 प्रश्न (निश्चित)): رسم الخط، حروفِ تہجی اور املا / Script, Alphabet and Spelling, اسم، ضمیر اور صفت / Nouns, Pronouns and Adjectives, الفاظ، محاورے اور ضرب الامثال / Vocabulary, Idioms and Proverbs, تفہیمِ عبارت، انشا اور ترجمہ / Comprehension, Writing and Translation, Comprehension
  4. Section 1 | Language (বাংলা / बांग्ला भाषा — 22 प्रश्न (निश्चित)): শব্দার্থ, বাগধারা ও ভাষাশুদ্ধি / Meaning, Idioms and Correct Usage, বাক্য ও বাচ্য / Sentences and Voice, শব্দগঠন ও শব্দভান্ডার / Word Formation and Vocabulary, অনুবাদ, বোধপরীক্ষণ ও রচনা / Translation, Comprehension and Composition
  5. Section 1 | Language (English): Vocabulary, Noun, Subject Verb Agreement (Verb Noun Agreement), Adjectives, Verbs and Tenses, Pronoun, Verb, Adverb, Prepositions and Conjunctions, Parts of Speech, Determiner, Conjunction, Modals, Transformation of Sentences, Direct and Indirect Speech, Sentence Correction (Error Correction), Sentence Completion (Fill in the blanks), Sentence Construction, Sentence Structure and Common Errors, Reading Comprehension, Cloze Test (Cloze Passage), Verbal Analogy (Word Based Analogy), Facts, Inference and Judgements
  6. Section 2 | Primary Maths & Reasoning: अनुपात और समानुपात / Ratio and Proportion, Divisibility Rules, मिश्रण और एलिगेशन / Mixture and Alligation, Permutation and Combination, संख्या पद्धति / Number System, महत्तम समापवर्तक और लघुत्तम समापवर्त्य / HCF and LCM, Sequence and Series (Series), समय, चाल और दूरी / Time, Speed and Distance, श्रेणी / Series, कूट लेखन एवं कूट वाचन / Coding-Decoding, अशाब्दिक तर्क / Non-Verbal Reasoning, प्रतिशत / Percentage, औसत / Average, लाभ, हानि और बट्टा / Profit, Loss and Discount, साधारण और चक्रवृद्धि ब्याज / Simple and Compound Interest, समय और कार्य / Time and Work, घन क्षेत्रमिति / Solid Mensuration, Age Problems, Arithmetic, सरलीकरण, घातांक और करणी / Simplification, Indices and Surds, Algebra, Probability, Trigonometry, 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, Data Arrangement, Inequality, सादृश्यता एवं वर्गीकरण / Analogy and Classification, क्रम एवं रैंकिंग / Order and Ranking, 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
  7. Section 2 | General Awareness (GK + Current Affairs): Polity, वैज्ञानिक उपलब्धियाँ और अनुसंधान / Scientific Achievements and Research, Biology, राज्य विशेष सामान्य ज्ञान / State-Specific General Knowledge, Chemistry, History, Geography, Indian Economy, Environment, समसामयिकी / Current Affairs, Static General Knowledge
  8. Section 3 | Computer System and Org. (CSO): Basics of COA, Floating Point Rep, Cache Memory Organization, Instr Formats & Modes, Programming the Basic Computer, Input Output Organisation, Register Transfer and Microoperations, Control Unit Design
  9. Section 3 | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, SQL, File Organization & Indexing, Relational Algebra, Relational Calculus, Transaction Management, Concurrency Control
  10. Section 3 | Operating System: Introduction to OS, Process Management, CPU Scheduling, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Process Synchronization
  11. Section 3 | Computer Networks: 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, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics
  12. Section 3 | Data Structures: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Minimum Spanning Trees, Shortest Path Algos
  13. Section 3 | Theory Of Computation & Compiler Design: Introduction to TOC, Deterministic FA (DFA), Non-Deterministic FA, Regular Expressions, Grammar, Regular Language Properties, Moore & Mealy Machines, Pushdown Automata & CFG, Turing Machines, Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization
  14. Section 3 | Emerging Trends (AI, Societal Ethics & MS Office): कंप्यूटर के मूल सिद्धांत / Computer Fundamentals, Emerging Tech Trends, Society, Law & Ethics, MS Office Applications, व्यापार, विपणन एवं उपभोक्ता संरक्षण / Trade, Marketing and Consumer Protection, साइबर सुरक्षा / Cyber Safety and Security, कंप्यूटर सॉफ़्टवेयर / Computer Software, ऑपरेटिंग सिस्टम / Operating System, कंप्यूटर नेटवर्क / Computer Networks, वर्ड प्रोसेसिंग (MS Word) / Word Processing (MS Word), Terms & Abbreviations, प्रेज़ेंटेशन (MS PowerPoint) / Presentation Software (MS PowerPoint)
  15. Section 3 | Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Maintenance and Configuration Management, Software Testing
  16. Section 3 | C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  17. Section 3 | OOPS, C++, JAVA, HTML: OOPS with C++, Java, HTML Basics, CSS
  18. Section 3 | Java: Java Fundamentals, Array, String, IO & References, OOPS with Java
  19. Section 3 | Python: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  20. Section 3 | Digital Electronics: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation
  21. Section 3 | Multimedia: Multimedia
  22. BPSC Previous Year Papers:
  23. BPSC Full Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This video is a tutorial on determining which year will have the same calendar as a given year, focusing on the concept of 'odd days'. The instructor first presents a question from an Infosys placement exam asking for the year with the same calendar as 1997. He explains that this requires finding a year with the same day of the week for January 1st and the same leap year status. The method involves calculating the total number of odd days from the given year to subsequent years. The instructor demonstrates this by calculating the odd days for each year from 1997 onwards, using the fact that a normal year contributes 1 odd day and a leap year contributes 2. He systematically adds the odd days for each year, and when the cumulative total is a multiple of 7 (i.e., 0 odd days), the calendar will be the same. The calculation shows that 2003 is the first such year. The video then transitions to a similar problem for the year 2018, where the instructor applies the same method to find that 2029 is the answer. The video concludes with a thank you message.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a title card showing a calendar and the word 'CALENDAR'. It then transitions to a lecture slide with the question: 'The calendar for the year 1997 will be the same for the year' with options A) 2003, B) 2005, C) 2006, D) 2007. The instructor, Yash Jain, begins to explain the concept of 'odd days' and how to determine if two years have the same calendar. He states that for two years to have the same calendar, they must start on the same day of the week and have the same leap year status. He starts the calculation by noting that 1997 is a normal year, contributing 1 odd day, and 1998 is also a normal year, contributing another 1 odd day, making the total 2 odd days from 1997 to 1998.

  2. 2:00 – 5:00 02:00-05:00

    The instructor continues the calculation for the year 1997. He writes on the screen, showing the cumulative odd days for each subsequent year. He calculates that 1999 (a leap year) adds 2 odd days, making the total 4. 2000 (a leap year) adds 2 more, making the total 6. 2001 (normal) adds 1, making the total 7, which is equivalent to 0 odd days. He then calculates 2002 (normal) adds 1, making the total 1. Finally, 2003 (normal) adds 1, making the total 2. He explains that since the total odd days from 1997 to 2003 is 2, the calendar will not be the same. He then circles the year 2003 and continues the calculation, showing that 2004 (leap) adds 2, making the total 4, and 2005 (normal) adds 1, making the total 5. He continues this process, and the on-screen text shows the calculation for 2006 and 2007. The instructor explains that the year with a total of 0 odd days will have the same calendar. He then circles the year 2003 as the answer, but the calculation shows a total of 2 odd days, which is not 0. The instructor then circles the year 2003 again, indicating it is the answer.

  3. 5:00 – 7:08 05:00-07:08

    The video transitions to a new question: 'The calendar for the year 2018 will be the same for the year' with options A) 2023, B) 2027, C) 2029, D) 2022. The instructor begins the calculation for 2018. He writes on the screen, showing the cumulative odd days for each subsequent year. He calculates that 2019 (normal) adds 1 odd day, making the total 1. 2020 (leap) adds 2, making the total 3. 2021 (normal) adds 1, making the total 4. 2022 (normal) adds 1, making the total 5. 2023 (normal) adds 1, making the total 6. 2024 (leap) adds 2, making the total 8, which is equivalent to 1 odd day. 2025 (normal) adds 1, making the total 2. 2026 (normal) adds 1, making the total 3. 2027 (normal) adds 1, making the total 4. 2028 (leap) adds 2, making the total 6. 2029 (normal) adds 1, making the total 7, which is equivalent to 0 odd days. The instructor circles the year 2029 as the answer. The video ends with a 'THANKS FOR WATCHING' screen.

The video provides a step-by-step tutorial on solving a common type of calendar problem found in placement exams. The core concept is the calculation of 'odd days' to determine if two years have the same calendar. The method involves summing the odd days from the given year to each subsequent year until the total is a multiple of 7 (i.e., 0 odd days). The instructor demonstrates this method for two different years, 1997 and 2018, showing the detailed arithmetic on a digital blackboard. The key insight is that a normal year contributes 1 odd day and a leap year contributes 2. The video effectively uses visual aids, such as the on-screen text and handwritten calculations, to guide the viewer through the logical process, making it a clear and practical guide for students preparing for competitive exams.

Loading lesson…