Quantitative Aptitude & Numerical Ability

Arithmetic covers chapters such as Number Systems, Percentages, Averages, Simplification, Counting Principles, Progression and Series and, Ratio, Proportion and Variation

Arithmetic

Data Interpretation covers chapters such as Measures of Central Tendency, Data Sufficiency, Graphical Representation of Data and, Organisation of Data

Data Interpretation

Geometry

DRDO Multi Tasking Staff Cadre

An Advanced Approach to DATA INTERPRETATION

Shortcut in Quantitative Aptitude for Competition

Finding N Arithmetic Means Between Two Numbers

Average Speed as a Tool of Comparison

Product of Two or Three Fractions

Drawing a Bar Graph

Interpretation of a Bar Graph

Introduction to a Bar Graph

Basics of Bar Graph

HCF and LCM

Test for Divisibility by 3

Test for Divisibility by 10

Illustration on Conditional Probability

IlLustration on Probability of Events

Mutually Exclusive Events

Types of Events

Sample Space

Introduction to Geometric Mean

Sum of n Terms of a GP When nᵗʰ Term is Given

Sum of First n Terms of a G.P.

Geometric Progression

Finding the nth Term of A.P. With Given Two Terms

Arithmetic Progression: Illustrations

Arithmetic Progression

Finding nth Term When Sum of n Terms Is Given!

Definition of Series, Sum & nᵗʰ Term

Introduction to Factorial Notation

Theorems of Probability

Probability of Equally Likely Events

Volume of Combination of Cylinder, Cone and Hemisphere

Volume of Combination of a Cylinder and Hemisphere

Volume of Combination of Hemisphere & Cone

Surface Area of Combination of Cone and Hemisphere

Surface Area of Combination of Cylinder and Cone

Surface Area of a Combination of Cylinder & Sphere

Surface Area of Combination of Solids

Sum of First n Terms of an Arithmetic Progression

Recurring Decimals

Problem on Finding Corrected Mean

Illustration of Mean of Ungrouped Data

Arithmetic Mean of the Data

Volume of Cone and Sphere

Volume of Cone:Illustration

Volume of a Cone

Introduction to the Volume of a Cylinder

Volume of Cubes and Cuboids: Problems

Volume of Cuboid and Cube: Examples

Surface Area of a Sphere

Total Surface Area of a Cone

Curved Surface Area of a Cone: Examples

Curved Surface Area of a Cone

Surface Area of a Right Prism

Surface Area of a Cylinder:Examples

Surface Area of a Cuboid: Example

Introduction to the Volume of a Solid

Introduction to Volume

Surface Area of a Cylinder: Examples

Surface Area of a Cylinder: Illustrations

Surface Area of a Cylinder

Surface Area of Rectangular Solids

Cube Root of Numbers by Prime Factorisation Method

Cube Root in the Form of Indices

Understanding Cube Root of Numbers

Understanding Cube Number and Its Unit Digit

Square Root of Decimal by Long Division Method

Square Root by Prime Factorisation Method

Square Root of an Integer

Square of a Number Ending with Digit 5

Examples on Verification of Perfect Squares

Verification of Perfect Squares: Examples

Unit Digit of Perfect Squares

Understanding Squares and Square Roots

Reading a Pie Chart

Introduction to Speed

This chapter covers topics such as Data Interpretation, Frequency Distribution, and Representation and Construction of Data.

Organisation of Data

In this chapter, we will explore the detailed concept of Measures of Central Tendency. Practising the problems related to this concept will help us develop knowledge and problem-solving skills.

Measures of Central Tendency

This chapter covers topics such as Bar Graphs, Mixed Graphs, Pie Charts, Line Graphs, Radar or Web Graphs, and Histograms of Grouped Data.

Graphical Representation of Data

This chapter covers the topic of Data Sufficiency.

Data Sufficiency

This chapter highlights the concepts of Geometry. It describes Lines, Angles, Quadrilaterals, Polygons and Circles along with their Construction, Area and Perimeter. Various examples related to these concepts are also included.

This chapter covers topics such as Speed Math and Basics of Simplification.

Simplification

This chapter covers topics such as Ratio, Proportion, Variation, Ratio of Equality, Ratio of Greater Inequality, and Ratio of Lesser Inequality.

Ratio, Proportion and Variation

This chapter covers topics such as A.M. and G.M., Arithmetic Progression, Geometric Progression, and Number Series.

Progression and Series

This chapter covers topics such as Problems on Percentage, Profit and Loss, Simple and Compound Interest, and Discount.

Percentages

This chapter covers topics such as LCM and HCF, Squares and Square Roots, Basics of Number Systems, Operations on Numbers, Fractions and Decimals, and Cubes and Cube Roots.

Number Systems

This chapter covers the topic of Probability.

Counting Principles

This chapter covers topics such as Problems on Averages, Mixtures and Alligations.

Averages

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