SHORT TRICK -Adding Ingredient to Increase Concentration

Duration: 7 min

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Inside: a video lesson and guided study material.

Module outline

  1. Quantitative Aptitude: Ratio and Proportion (Ratios), Data Interpretation, Mixture and Alligation, Permutation and Combination, Number System, Sequence and Series (Series), Speed Time and Distance, Speed Mathematics and Basic Mathematics, Algebra, Percentage, Profit and Loss, Simple Interest and Compound Interest, Powers and Exponents (Surds and Indices), Time and Work, Mensuration and Geometry, Partnership
  2. Reasoning Ability: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Seating Arrangements, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Directions (Direction Test), Ranking, Order and Sequence, Syllogisms, Blood Relations, Puzzle Solving (Puzzles), Inequality, Machine Input-Output
  3. English Language: Vocabulary, Noun, Subject Verb Agreement (Verb Noun Agreement), Adjectives, 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), Sentence Construction, Pronoun, Preposition, Conjunction, Adverb, Verb, Modals, Articles, Determiner, Interjection
  4. General Awareness: Evolution of Indian Banking (Banking & Financial Awareness), GK- Current Affairs, Static General Knowledge, Indian Economy
  5. C Concepts + MCQs (IT Specialist): C Programming by Yash Sir, C Language Core
  6. Java (IT Specialist): Java
  7. Python (IT Specialist): Python for Placements by Yash Sir, Python Basics
  8. OOPs (IT Specialist): Object Oriented Programming (OOPS)
  9. DBMS (IT Specialist): 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
  10. SQL (IT Specialist): SQL
  11. Software Engineering (IT Specialist): Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  12. Data Structure (IT Specialist): Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
  13. Operating System (IT Specialist): 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
  14. Compiler Design (IT Specialist): Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization, Run Time Environment
  15. Computer Architecture (IT Specialist): Basics of COA, Floating Point Rep, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Control Unit Design, Register Transfer and Microoperations, Multiprocessors, Programming the Basic Computer
  16. Data Communication & Networking (IT Specialist): 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
  17. Descriptive Test (Main Exam): English Writing Ability
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video, presented by Yash Jain, is a tutorial on solving mixture and alligation problems. The lecture begins with an introduction to the topic, followed by a detailed explanation of a formula for calculating the quantity of an ingredient to be added to increase concentration. The instructor demonstrates this formula with two worked examples: first, calculating how much milk to add to an 80-litre mixture to increase its concentration from 70% to 95%, and second, determining how much lime juice to add to 4 litres of lemon water to increase its concentration from 15% to 20%. The video uses a digital whiteboard for step-by-step calculations, clearly showing the application of the formula: (Quantity of mixture) x (New concentration - Old concentration) / (100 - New concentration). The video concludes with a 'Thanks for Watching' screen.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with an animated title card for 'MIXTURES & ALLIGATIONS' by Yash Jain, a Knowledge Gate Educator. The instructor, Yash Jain, appears in a small window and introduces the topic. The main screen displays a slide titled 'Adding an Ingredient to Increase Concentration', setting the stage for the lesson. The instructor begins to explain the concept of increasing the concentration of a component in a mixture by adding more of that component.

  2. 2:00 – 5:00 02:00-05:00

    The instructor presents the first problem: '80 litres of a mixture of milk and water contains 70% milk. How much milk should be added to the mixture so that the percentage of milk becomes 95%?'. He then introduces the formula for the quantity to be added: (Quantity of mixture) x (New concentration - Old concentration) / (100 - New concentration). He writes this formula on the digital whiteboard and substitutes the values from the problem: 80 x (95 - 70) / (100 - 95), which simplifies to 80 x 25 / 5. He calculates the result as 400 litres, explaining that 400 litres of milk must be added.

  3. 5:00 – 6:44 05:00-06:44

    The instructor moves to the second example: '4 litres of lemon water contains 15% lime juice. How much lime juice should be added to increase the concentration to 20%?'. He applies the same formula: 4 x (20 - 15) / (100 - 20). He writes the calculation as 4 x 5 / 80, which simplifies to 20 / 80, resulting in 0.25 litres. The video concludes with a 'THANKS FOR WATCHING' screen.

The video provides a clear, step-by-step tutorial on solving mixture problems where the goal is to increase the concentration of a component. It establishes a universal formula, (Q x (N - O)) / (100 - N), where Q is the quantity of the mixture, N is the new concentration, and O is the old concentration. The instructor effectively demonstrates the application of this formula with two distinct, real-world examples, reinforcing the method through calculation. The progression from a general concept to specific, worked problems ensures a comprehensive understanding of the topic.

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