Skip to main content
Super TutorResources
Chapter 3 of 19
SyllabusNotesTopicsQuestionsPlanFormulas
Formula Sheet

Averages — Formula Sheet

SNAP · Quantitative Aptitude

All important formulas from Averages for SNAP Quantitative Aptitude. Quick reference for revision and problem solving.

Interactive on Super Tutor

Studying Averages? Get the full chapter — free.

Practice questions, revision notes, formula sheet and AI doubt-solver — built for SNAP Quantitative Aptitude.

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

Formula Sheet — Averages

Important formulas and equations from Averages for SNAP Quantitative Aptitude.

Formulas — Averages

Basic Average Formulas

Average = Sum of observations / Number of observations
Sum = Average × Number of observations
Number = Sum / Average

Weighted Average

Weighted Average = (w₁×x₁ + w₂×x₂ + ... + wₙ×xₙ) / (w₁ + w₂ + ... + wₙ)
Combined Average = (n₁A₁ + n₂A₂) / (n₁ + n₂)

Average Properties and Rules

New Average = Old Average + (Change per item)
Average after n years = Current Average + n

Common Problem Types

Get the complete formula sheet with derivations — continue in Super Tutor

Frequently Asked Questions

What topics are covered in Averages for SNAP?
Averages is an important chapter in SNAP Quantitative Aptitude. 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 SNAP?
Averages is a frequently tested chapter in SNAP Quantitative Aptitude. Questions from this chapter appear regularly in previous year papers. There are 44 practice questions available for this chapter.
How to prepare Averages for SNAP?
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 — SNAP Quantitative Aptitude Formula Sheet

For SNAP aspirants

Get the full Averages chapter — for free.

Practice questions, revision notes, formula sheet and AI doubt-solver for SNAP Quantitative Aptitude.

Try Super Tutor Free
Try the full chapter — Free