Arithmetic for CAT Class 2 | Ratio and Proportion part 2 | Quantitative Aptitude for CAT Playlist

Hi everyone this video is going to be a quant ratios basics lecture part 2, here we will be covering ratios and it will be our second lecture for Arithmetic for CAT complete playlist.

You can follow this arithmetic for CAT playlist

Welcome to Lesson 2 of our "Arithmetic for CAT" series! In this comprehensive tutorial, we delve into the fundamental concepts of Ratio and Proportion, essential for mastering the Quantitative Aptitude section of the CAT (Common Admission Test).

Ratio and Proportion is a crucial topic in the Quantitative Aptitude section of the CAT (Common Admission Test), a highly competitive entrance exam for admission into prestigious management programs in India, such as the Indian Institutes of Management (IIMs) and other leading business schools. Here's an overview of Ratio and Proportion for CAT:

1. Understanding Ratio and Proportion:

Ratio: A ratio is a comparison of two quantities by division. It expresses the relationship between two numbers or quantities.
Proportion: Proportion is an equation that states two ratios are equal.
2. Basic Concepts:

Direct and Indirect Proportion: Understanding the concepts of direct and indirect proportionality is crucial. In direct proportion, as one quantity increases, the other also increases, and vice versa. In indirect proportion, as one quantity increases, the other decreases, and vice versa.
Properties of Ratios and Proportions: Understanding properties such as cross-multiplication and componendo-dividendo is essential for solving complex problems.
3. Applications:

Mixtures and Alligations: Ratios and proportions are extensively used in solving mixture problems, where different components are mixed together to obtain a desired mixture.
Time, Speed, and Distance: Ratios and proportions are applied to solve problems related to time, speed, and distance, involving concepts like average speed, relative speed, and time taken to cover a certain distance.
4. Strategies for CAT Preparation:

Practice Regularly: Regular practice with a variety of problems is crucial for mastering ratio and proportion questions.
Understand the Concepts: Instead of rote memorization, focus on understanding the underlying concepts and principles.
Shortcut Techniques: Learn shortcut techniques and tricks to solve problems quickly and efficiently, which is particularly important in a time-constrained exam like CAT.
5. Recommended Resources:

CAT Preparation Books: Refer to standard CAT preparation books that cover the Quantitative Aptitude section comprehensively.
Online Resources: Utilize online platforms, forums, and video tutorials dedicated to CAT preparation, which often provide practice questions, solutions, and concept explanations.
6. Practice and Mock Tests:

Regular practice with mock tests and previous years' question papers is essential to improve speed and accuracy in solving ratio and proportion problems within the stipulated time frame of the CAT exam.
In summary, mastering Ratio and Proportion is vital for success in the Quantitative Aptitude section of the CAT exam. With thorough understanding, regular practice, and strategic preparation, aspirants can effectively tackle the challenges posed by this topic and enhance their overall performance in the exam.

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[praufc]

A genuine Question, That in the first question, if we are given all of them are equal to r, then if we add it up shouldnt it be 3r? to the equals???
Now i understand that as per the perspective of ratios, it does not need to be 3r, because of the property, but how are we supposed to distinguish that it relates to the ratio logic and not just normal

[priyanshuagarwal]

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[tilokanimeet]

At (8:41) 8th minute 41st second it should be a2(square)/b2(square) ....
Correct me If I'm wrong but this is what my answer was! (I took a/b = 1/2 & c/d = 3/6)

[banarasi_vibes]

Will you please teach aside from the board coz I'm unable to see the question. And I got so frustrated

[rishisharma]

10:00 In this question why are we taking both the cases after we 1/2 as the answer
I didnt get it

[MohammadSahil-jb]

31:05, didn't get the last part of the question through Property Method