Skip to main content
Super TutorResources
Chapter 3 of 19
SyllabusNotesTopicsQuestionsPlanFormulas
Revision Notes

Averages — Revision Notes

XAT · Quantitative Ability & Data Interpretation

Free Averages revision notes for XAT Quantitative Ability & Data Interpretation 2026 — key concepts, formulas, and definitions for quick revision.

Interactive on Super Tutor

Studying Averages? Get the full chapter — free.

Practice questions, revision notes, formula sheet and AI doubt-solver — built for XAT Quantitative Ability & Data Interpretation.

Try Super Tutor — Free
A visual explanation of weighted average, showing how the average shifts towards the group with more 'weight' (higher count or quantity), using a number line and a balance analogy.
Super Tutor

This is just one of 7+ visuals inside Super Tutor's Averages chapter

Explore the full set

Revision Notes — Averages

Key concepts, formulas, and definitions from Averages for XAT Quantitative Ability & Data Interpretation preparation.

Key Topics to Revise

1

Basic Concepts of Central Tendency

  • Three main measures of central tendency: Mean (Average), Median, and Mode
  • Arithmetic Mean is the most widely used and effective measure
  • Average represents the value that can replace each number without changing the total
2

Weighted Averages

  • Used when different values have different importance or weights
  • Essential for problems involving mixtures, investments, speed calculations
  • Weights can be simplified to ratios for easier calculation
3

Properties and Applications of Averages

  • Average can replace each number without changing the total sum
  • Net deficit below average equals net surplus above average
  • For age problems: average age increases by n years after n years
4

Practical Applications

  • Price calculations when buying different quantities at different rates
  • Speed and distance problems with varying speeds over different time periods
  • Mixture problems involving different concentrations

Get complete revision notes with diagrams and examples — continue in Super Tutor

Key Concepts

The arithmetic mean is calculated asThe median is the middle valueThe mode is the most frequentlySimple averages treat all values equallyKey properties include

Frequently Asked Questions

What topics are covered in Averages for XAT?
Averages is an important chapter in XAT Quantitative Ability & Data Interpretation. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Basic Concepts of Central Tendency, Weighted Averages, Properties and Applications of Averages, Practical Applications.
How important is Averages for XAT?
Averages is a frequently tested chapter in XAT Quantitative Ability & Data Interpretation. Questions from this chapter appear regularly in previous year papers. There are 58 practice questions available for this chapter.
How to prepare Averages for XAT?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.

More resources for Averages

All 19 chapters — XAT Quantitative Ability & Data Interpretation Revision Notes

For XAT aspirants

Get the full Averages chapter — for free.

Practice questions, revision notes, formula sheet and AI doubt-solver for XAT Quantitative Ability & Data Interpretation.

Try Super Tutor Free
Try the full chapter — Free