Chapter-12 Direct and Inverse Proportions

About RS Aggarwal Solutions for Class 8 Maths Chapter-12 Direct and Inverse Proportions

Direct and inverse proportions are mathematical relationships between two quantities that describe how they vary in relation to each other.

Direct Proportion:

In a direct proportion, two quantities increase or decrease together at a constant ratio. This means that as one quantity increases, the other quantity also increases by the same factor, or as one quantity decreases, the other quantity decreases by the same factor.

Mathematically, if two quantities, x, and y, are in direct proportion, it can be represented as:

x ∝ y or x = ky

where k is the constant of proportionality. This means that if you multiply x by a certain factor, you will also multiply y by the same factor.

For example, if the speed of a car is directly proportional to the distance it travels, it means that if you double the distance, the speed will also double. Similarly, if you halve the distance, the speed will be halved.For RS Aggarwal's class 8 Maths check out the page and if you need home tuition for class 8 Maths find the right tutors. 

Exercise of RS Aggarwal Solutions for Class 8 Maths Chapter-12 Direct and Inverse Proportions

Class 8 Maths Direct and Inverse Proportions (Ex 12A) Exercise 12.1

Class 8 Maths Direct and Inverse Proportions (Ex 12B) Exercise 12.2

Class 8 Maths Direct and Inverse Proportions (Ex 12C) Exercise 12.3

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