Formula Find Day on a Particular Date

Duration: 10 min

This video lesson is available to enrolled students.

Return to /learn/COGNIZANT-PREPARATION/analytical-and-logical-reasoning/calendar/finding-day-on-a-given-date/asset-formula-find-day-on-a-particular-date-9399 after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Communication Round: Vocabulary, Subject Verb Agreement (Verb Noun Agreement), Tenses, Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Cloze Test (Cloze Passage), Sentence Correction (Error Correction), Sentence Completion (Fill in the blanks), Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Direct and Indirect Speech, Active Passive Voice (Voice), Verbal Analogy (Word Based Analogy), Articles, Preposition, Conjunction, Sentence Construction, English Writing Ability, Communication Assessment
  2. Quantitative Aptitude: Ratio and Proportion (Ratios), Divisibility Rules, Data Interpretation, Mixture and Alligation, Permutation and Combination, Logarithm, Number System, HCF LCM, Speed Time and Distance, Percentage, Average, Powers and Exponents (Surds and Indices), Time and Work, Mensuration and Geometry, Age Problems, Pipe and Cistern, Probability, Profit and Loss, Simple Interest and Compound Interest, Algebra
  3. Analytical and Logical Reasoning: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Directions (Direction Test), Ranking, Order and Sequence, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Selection Decision Table (Decision Making), Logical Sequence Of Words, Puzzle Solving (Puzzles), Syllogisms, Seating Arrangements, Calendar, Clock, Blood Relations, Cubes & Dices, Venn Diagram, Analytical Reasoning (Counting Figures Reasoning)
  4. Cognizant Gaming Aptitude: Gamified / Game Based Aptitude
  5. Java (Cluster 1): Java
  6. ANSI SQL MySQL (Cluster 1,2,3): SQL
  7. HTML, CSS, JavaScript (Cluster 1,3): HTML, CSS, JavaScript
  8. Python (Cluster 2): Python for Placements by Yash Sir
  9. Cloud Fundamentals (Cluster 2): Emerging Tech Trends
  10. C# (Cluster 3): C#
  11. OOPs: Object Oriented Programming (OOPS)
  12. Technical Assessment (Coding): Coding Questions by Yash Sir, C Programming by Yash Sir, Programming in C++, Pseudo Codes
  13. Data Structures: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
  14. DBMS: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, Relational Calculus, Transaction Management, Concurrency Control, Database Recovery, ORDBMS, Database Security & Authorization, Query Processing & Optimization, Enhanced Data Models, Data Warehousing & Mining, Big Data Systems, NoSQL
  15. Operating Systems: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling, File Management, Windows OS, Linux OS, Security, Distributed Systems, Virtual Machines
  16. Computer Networks: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, 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, Mobile Technology, Cloud Computing and IoT, Cyber and Info Security
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video presents a lecture on the Bramhasthra Formula, a method for determining the day of the week for any given date. The instructor, Yash Jain Sir, begins by posing a question about the Wednesdays in April 2018, which is a past exam question from TCS 2019. He then introduces the Bramhasthra Formula: [Year + Leap Year + Date + Month Code + Year Code] / 7. The video systematically breaks down the components of the formula. It shows a table for the Year Code, which assigns a value to each year based on a 400-year cycle (e.g., 1600-1699 has a code of 6). It also displays a table for the Month Code, where April is assigned a code of 6. The Day Code table is shown, with Wednesday corresponding to the number 4. The instructor demonstrates the calculation for April 1, 2018, by plugging in the values: 18 (year) + 4 (leap year adjustment) + 1 (date) + 6 (month code) + 6 (year code), which sums to 35. Dividing 35 by 7 gives a remainder of 0, which corresponds to Sunday. The instructor then corrects this, explaining that a remainder of 0 or 7 signifies Sunday, so the day for April 1, 2018, is Sunday. The video then transitions to a new question about the day of the week for June 19, 1970, and begins the calculation. The video concludes with a 'Thanks for Watching' screen.

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 screen. The instructor, Yash Jain Sir, introduces a question: 'On what dates of April 2018 did Wednesday fall?' The options are provided. The instructor states this is an important question from TCS 2019. He then introduces the 'Bramhasthra Formula' as the method to solve it, writing the formula on the screen: [Year + Leap Year + Date + Month Code + Year Code] / 7. The background is a blackboard with educational doodles.

  2. 2:00 – 5:00 02:00-05:00

    The instructor begins to explain the components of the Bramhasthra Formula. He writes '01 April 2018' on the board. He explains that the 'Year' is 18 (from 2018), the 'Date' is 1, and the 'Leap Year' adjustment is 4 (since 2018 is not a leap year, but the adjustment is based on the number of leap years from 1600 to 2018). He then introduces the 'Month Code' for April, which is 6. He also shows a table for the 'Year Code' for different centuries, indicating that 2000-2099 has a code of 6. He begins to sum the values: 18 + 4 + 1 + 6 + 6.

  3. 5:00 – 10:00 05:00-10:00

    The instructor completes the calculation for April 1, 2018. He sums the values: 18 (Year) + 4 (Leap Year) + 1 (Date) + 6 (Month Code) + 6 (Year Code) = 35. He divides 35 by 7, which equals 5 with a remainder of 0. He then refers to a 'Day Code' table, which shows that a remainder of 0 or 7 corresponds to Sunday. He concludes that April 1, 2018, was a Sunday. He then begins to solve the next question, 'Which day lied on 19th June 1970?', by writing the formula: [70 + 17 + 19 + 4 + 0] / 7. He explains that the year is 70, the leap year adjustment is 17 (number of leap years from 1600 to 1970), the date is 19, the month code for June is 4, and the year code for 1900-1999 is 0.

  4. 10:00 – 10:09 10:00-10:09

    The video transitions to a final screen with a blue, abstract, digital background. The text 'THANKS FOR WATCHING' is displayed in large, white, capital letters. This is the end of the lecture.

The video provides a step-by-step tutorial on the Bramhasthra Formula for calculating the day of the week. It begins with a real-world problem from a past exam, then systematically introduces the formula and its components: Year, Leap Year adjustment, Date, Month Code, and Year Code. The instructor uses a combination of on-screen text, tables, and handwritten calculations to demonstrate the method. The core of the lesson is the application of the formula, where the sum of the components is divided by 7, and the remainder is used to identify the day of the week from a predefined code table. The video effectively uses a practical example to teach a complex calculation method, making it accessible for students preparing for competitive exams.

Loading lesson…