Averages and Mixtures

In this chapter, we will understand the concept of average. We will study the properties of average, the concept of weighted average, and formulae related to it. We will also attempt questions given in the exercise for clarity and self-assessment.

This chapter elucidates the concept of alligations to students. It teaches us how to solve problems on weighted average with the aid of examples. It also elaborates on the alligation situation and its graphical representation.

This chapter incorporates review tests - block II. It aims to test students' conceptual clarity of each topic discussed. A closer look at the kind of questions helps in the greater variety of students' preparation.