COGNIZANT & ACCENTURE Asked Questions on Alligation Rule

Duration: 9 min

This video lesson is available to enrolled students.

Return to /learn/RPSC-PROGRAMMER/paper-1-numerical-analysis/mixture-and-alligation/alligation-rule-core-concept-two-ingredient-mixture/asset-cognizant-accenture-asked-questions-on-alligation-rule after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Paper 1 | Reasoning Test: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Seating Arrangements, Blood Relations, Puzzle Solving (Puzzles), Venn Diagram, Analogy, Ranking, Order and Sequence, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Selection Decision Table (Decision Making), Logical Sequence Of Words, Cubes & Dices, Analytical Reasoning (Counting Figures Reasoning), Calendar, Alphabet and Word Tests, Numerical Reasoning, Number System, Averages, Mixtures and Alligation, Percentages, Series Completion, Analogy and Classification, Patterns in Two-Dimensional Figures, Coding and Decoding, Mathematical Operations, Direction Sense, Algebra, Logical Deduction and Induction, Syllogisms and Venn Diagrams, Critical Reasoning, Order, Ranking and Sequence, Reading Comprehension, Profit, Loss and Discount, Constraint Puzzles, Speed, Time and Distance, Traverse Surveying, Ratio and Proportion, Time and Work, Mensuration, Permutations and Combinations, Clocks and Calendars, Data Interpretation, Assembling and Grouping of Shapes, Transformation of Shapes, Three-Dimensional Patterns and Visualization, Cubes and Dice, Vocabulary, Blood Relations, Data Sufficiency
  2. Paper 1 | Numerical Analysis: Number System, HCF LCM, Percentage, Ratio and Proportion (Ratios), Average, Sequence and Series (Series), Powers and Exponents (Surds and Indices), Algebra, Statistics, Data Interpretation, Mental Ability, Arithmetic, Logarithm, Profit and Loss, Simple Interest and Compound Interest, Speed Time and Distance, Mixture and Alligation, Mensuration and Geometry, Permutation and Combination, Probability, Sequences and Series, Powers, Surds and Logarithms, Subject-Verb Agreement, Sentence Completion, Geometry, Sentence Structure and Correction, Data Sufficiency, Trigonometry, Measurement and Quantity Take-Off, Signal Space and Optimum Detection, Probability, Statistics, Algebra, Time and Work, Speed, Time and Distance, Data Interpretation, Graph Theory, Combinatorics
  3. Paper 1 | General Knowledge: State Wise GK, History, Geography, GK- Current Affairs, Static General Knowledge, Polity, Indian Economy
  4. Paper 1 | DBMS: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, SQL, Transaction Management, Concurrency Control, Relational Calculus, Database Security & Authorization, Database Recovery
  5. Paper 1 | Data Communication & Network: 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, Network Security, Security in Mobile and Wireless Computing, Input Output Organisation, File Management, Hardware Basics, Terms & Abbreviations, Protocols & Services, Network Access Technologies, Cyber Safety and Security, Basics of COA
  6. Paper 2 | System Analysis & Design: Fundamentals of Systems and Information Systems, SDLC and Development Approaches, Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Documentation and Software Requirements Specification (SRS), SDD and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, Security, Risk Management & Maintenance, extras
  7. Paper 2 | Programming Language (Java): Java Fundamentals, OOPS with Java, Array, String, IO & References, Generic & Collections, Multithreading, Java, Miscellaneous, Control Flow, OOPS with C++, Stack, C Fundamentals, Arrays & Pointers, Object Oriented Technology, Control Flow & Looping, Introduction to Python
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video is a lecture on the topic of 'Mixtures & Alligations,' presented by an instructor named Yash Jain. The video begins with a title slide and then proceeds to solve two distinct problems using the alligation method. The first problem involves calculating the average price of a mixture of two types of hair oil priced at Rs. 10 and Rs. 12 per sachet, mixed in a 1:2 ratio. The instructor demonstrates the alligation rule by setting up a diagram with the prices and the ratio, then solving the resulting equation to find the average price of Rs. 11.33 per sachet. The second problem asks for the amount of a second type of oil (Rs. 5 per kg) needed to mix with 40 kg of a first type (Rs. 4 per kg) to create a mixture costing Rs. 4.6 per kg. The instructor again uses the alligation method, calculating the difference in prices and setting up a proportion to find the required amount of the second oil, which is 60 kg. 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 featuring a cartoon scientist in a lab, with the word 'MIXTURE' partially visible. This transitions to a presentation slide with a geometric background. The slide displays the title 'MIXTURES & ALLIGATIONS' and credits the instructor as 'By Yash Jain'. A small video window in the bottom right corner shows the instructor, Yash Jain, speaking. The slide also includes a logo for 'YASH JAIN SIR' and 'KNOWLEDGE GATE EDUCATOR'. The instructor begins his lecture, introducing the topic of mixtures and alligations.

  2. 2:00 – 5:00 02:00-05:00

    The video transitions to a new slide presenting the first problem. The on-screen text reads: 'Que: Aatmaram Tukaram Bhide has two varieties of hair oil at Rs. 10 per sachet and Rs. 12 per sachet and he mixed both of them together in the ratio 1:2. Find the average price of resulting mixture?'. The instructor begins to solve this problem using the alligation method. He draws a diagram on the whiteboard, placing the prices 10 and 12 at the top, the average price 'x' in the middle, and the ratio 1:2 at the bottom. He then sets up the equation (12-x)/(x-10) = 1/2, which he proceeds to solve.

  3. 5:00 – 9:27 05:00-09:27

    The instructor continues solving the first problem. He cross-multiplies the equation (12-x)/(x-10) = 1/2 to get 2(12-x) = x-10. He simplifies this to 24 - 2x = x - 10, then combines like terms to get 3x = 34. He calculates the final answer as x = 34/3 = 11.33, concluding that the average price is Rs. 11.33 per sachet. The video then transitions to the second problem, which is displayed on a new slide: 'Que: Two types of oil having the rates Rs. 4 per kg and Rs. 5 per kg respectively are mixed in order to produce a mixture having the rate of Rs. 4.6 per kg. What should be the amount of the second type of oil if the amount of the first type of oil in the mixture is 40 Kg?'. The instructor applies the alligation method again, calculating the differences (5 - 4.6 = 0.4 and 4.6 - 4 = 0.6) and setting up the ratio 0.4:0.6, which simplifies to 4:6. He then uses this ratio to find the amount of the second oil, calculating (6/4) * 40 = 60 kg. The video ends with a 'THANKS FOR WATCHING' screen.

The video provides a clear, step-by-step tutorial on solving mixture and alligation problems. It begins with an introduction to the topic and then applies the alligation method to two different scenarios. The first example demonstrates how to find the average price of a mixture when the prices of the components and their ratio are known. The second example shows how to find the quantity of one component needed to achieve a desired mixture price, given the quantity of the other. The instructor consistently uses a visual diagram to illustrate the alligation rule, making the mathematical process intuitive. The progression from a simple problem to a more complex one effectively builds the viewer's understanding of the concept.

Loading lesson…