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Index

Number System

Simplification & Approximation

Compound & Simple Interest

Time and Work

Ratio and Proportion

Percentage

Geometry

Averages

Mensuration: Volume, Surface Area & Solid Figures

Trigonometry

Speed, Distance and Time

Vedic Mathematics

HCF & LCM

Mixtures & Alligations

Problem on Ages

Algebra

Data Interpretation

Quantitative Aptitude videos

Profit & Loss

Square Roots & Cube Roots

Probability

Fractions & Decimals

Indices & Surds

Height & Distance

Graph of linear equation

Tips & Tricks

All Exams > Delhi Police Constable > Quantitative Aptitude for Competitive Exams > All Videos

All videos of Quantitative Aptitude for Competitive Exams for Delhi Police Constable Exam

Number System

Conversion to Rational Numbers

03:09 min

Shortcut Techniques: Number System

32:16 min

Perfect Square

04:57 min

Even-Odd Multiplication- Number Theory

02:09 min

Introduction: Even and Odd Numbers

10:02 min

Zeroes in a Factorial - Number Theory

04:43 min

Cyclicity: Number Theory

03:24 min

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Simplification & Approximation

Simplification Tricks - 1

10:11 min

Simplification Tricks - 2

32:41 min

Compound & Simple Interest

Introduction: Basic Concept of Simple Interest and Compound Interest

16:18 min

Concepts: Simple Interest

06:26 min

Basic concept and Formulas of Compound Interest

06:38 min

Basic Questions of Compound Interest

16:57 min

Practice Questions: Simple Compound Interest

10:32 min

How to compute Compound Interest Half-Yearly

30:25 min

How to compute Compound Interest Quarterly

16:21 min

Some more type of Problems based on Compound Interest

17:07 min

Tricks to solve Problems on Simple Interest - 1

06:26 min

Time and Work

Basics: Time & Work

43:15 min

Reciprocals & LCM Method: Time & Work

03:12 min

Introduction: Time & Work

35:56 min

Practice Questions: Time & Work- 1

08:45 min

Practice Questions: Time & Work- 2

11:09 min

Practice Questions: Time & Work- 3

46:14 min

Ratio and Proportion

Ratio & Proportion

09:29 min

Problem Set: Ratio & Proportion

07:57 min

Introduction to Proportion: Ratio & Proportion

04:14 min

Introduction to Ratio - Ratio and Proportion

05:24 min

Percentage

Multiplying Factor: Percentages

02:45 min

Applications of Percentages

14:59 min

Important Concepts of Percentages

17:31 min

Geometry

Problem set on Rectangles - 1

08:20 min

Problem set on Rectangles - 2

08:37 min

Geometry of Quadrilateral

07:37 min

Problem set on Square - 1

08:15 min

Problem set on Square - 2

08:30 min

Properties of Circles- Geometry, Quantitative Reasoning

02:33 min

Problem set on Circles

08:22 min

Properties of Triangle

02:44 min

Pythagoras Theorem: Geometry

02:57 min

Problem Set on Triangles

09:31 min

Averages

Averages & Partnerships

09:08 min

Overview: Averages

01:56 min

Important Questions for CAT: Averages

19:02 min

Mensuration: Volume, Surface Area & Solid Figures

Introduction, Basic Concepts & Formulae: Mensuration- 1

11:20 min

Introduction, Basic Concepts & Formulae: Mensuration- 2

07:20 min

Area & Perimeter of Path 2D Mensuration

18:50 min

Trigonometry

Introduction to Trigonometry

03:18 min

Trigonometric Functions & the Unit Circle

07:44 min

Speed, Distance and Time

Relative Speed: Speed, Time & Distance

03:00 min

Landmark Problem: Speed, Time & Distance

02:35 min

Vedic Mathematics

Multiplication Techniques using Visualization: Vedic Mathematics

12:44 min

Tricks for Multiplication & Few Examples: Vedic Mathematics

18:36 min

Multiplying any two 2 digit number in 3 seconds: Vedic Mathematics

05:35 min

Shortcut Tricks: Percentages

04:24 min

Cube root of any number in 10 seconds: Vedic Mathematics

06:56 min

Addition tricks & Few Examples: Vedic Mathematics

13:48 min

Multiplication Trick: Multiply Two Numbers that are Just Above the Base

04:00 min

Multiplication Tricks: Palindrome Approach

04:55 min

Multiplication Tricks: Multiplying Numbers just Above & Below the Base (Examples)

03:41 min

Multiplication Tricks: Multiplying Numbers with 9

03:20 min

Squares Tricks: Square of a Number Close to the Base

05:31 min

Multiplication Tricks: Multiplying Two Numbers where the Base is a Multiple of Power of 10

04:58 min

Temperature Conversion Trick

05:56 min

Multiplication Trick: Multiply Two Numbers that are Just Below the Base

06:11 min

Multiplication Tricks: Umbrella Approach

05:19 min

Multiplication Tricks: Multiply Two Numbers, One which is Above the Base and the Other Below

03:28 min

Squares Tricks: Square of a Number Close to the Multiple of the Base

03:53 min

Multiplication Tricks: Multiplying Any Number with 11, 12 & 13

09:07 min

Multiplication Tricks: Japanese Technique (Using Lines)

03:44 min

Division Tricks: When a Number is Divided by 9

04:42 min

Division Tricks: When a Number is Divided by 5

02:43 min

Squares Tricks: Square of Numbers Close to 50

03:56 min

Cubes Tricks

05:10 min

Tricks for Quick Multiplication

27:13 min

Tricks to find Roots & Square Roots

14:08 min

Tricks for Quick Division

06:44 min

Tricks for Fast Calculations

05:05 min

HCF & LCM

Important Concepts: HCF & LCM

14:39 min

Basic Concepts: HCF and LCM

09:42 min

Mixtures & Alligations

Alligation & Mixtures

13:37 min

Alligations: Arithmetic, Quantitative Reasoning

02:41 min

Shortcuts and Tricks: Mixtures & Alligations

60:48 min

Alligation & Mixture: Removed & Replaced

40:51 min

Rules to Solve Mixtures & Alligations

33:45 min

Alligation & Mixture

24:37 min

Alligation and Mixture: Finding the value of X?

18:55 min

Problem on Ages

Tricks & Shortcuts to solve problems on Ages - 1

08:19 min

Tricks & Shortcuts to solve problems on Ages - 2

07:51 min

Tricks & Shortcuts to solve problems on Ages - 3

07:08 min

Tricks & Shortcuts to solve problems on Ages - 4

06:06 min

Algebra

Pair of Linear Equations in Two Variables

03:29 min

Arithmetic Progression & Geometric Progression

02:56 min

Functions - Algebra, Quantitative Reasoning

03:25 min

Quadratic Equations

03:01 min

Quadratic Equation: Maxima & Minima

08:11 min

Remainder theorem

03:46 min

Quadratic equation problems based on properties of roots

02:22 min

Surds and Indices - Quantitative Aptitude

03:51 min

Laws of Nth roots Surds - Quantitative Aptitude

03:25 min

Problem Set 1 (Surds and Indices) - Quantitative Aptitude

08:37 min

Problem Set 2 (Surds and Indices) - Quantitative Aptitude

06:16 min

Introduction to Inequalities, Quantitative Aptitude

05:57 min

Data Interpretation

Data Interpretation Introduction and Its Types

27:38 min

Basic Calculations and Tricks for Data Interpretation

25:28 min

Data Interpretation Type: Pie Chart

19:25 min

Data Interpretation Type: Bar Chart

12:53 min

Quantitative Aptitude videos

Average - 1

36:06 min

Average - 2

48:10 min

Geometry - 1

58:40 min

Geometry - 2

58:35 min

Geometry - 3

59:27 min

Geometry - 4

61:56 min

Geometry - 5

22:32 min

Introduction to Algebra

97:23 min

Introduction to Ratio

51:06 min

Number System - 1

82:22 min

Number System - 2

76:15 min

Remainder Theorem - 1

79:08 min

Remainder Theorem - 2

34:37 min

Surds & Indices

65:14 min

Divisibility Tests - Quant

67:05 min

Time & Work

51:47 min

Profit & Loss - 1

50:10 min

Profit & Loss - 2

56:47 min

Profit and Loss - 3

41:08 min

Profit and Loss - 4

51:58 min

Trigonometry - 1

69:25 min

Trigonometry - 2

108:18 min

Trigonometry - 3

57:04 min

Trigonometry - 4

48:44 min

Time & Distance - 1

46:53 min

Time & Distance - 2

80:12 min

Time & Distance - 3

70:34 min

Simplification - 1

62:09 min

Simplification - 2

47:32 min

Simplification - 3

78:38 min

Simplification - 4

80:01 min

Simplification - 5

66:08 min

Simplification - 6

76:12 min

HCF & LCM - 1

22:39 min

HCF & LCM - 2

38:03 min

Introduction to Series

29:21 min

Profit & Loss

How to solve Questions on Profit and Loss - 1

30:39 min

How to solve questions on Profit and Loss - 2

29:50 min

Profit And Loss : Introduction

37:07 min

Tricks for solving Interest Questions

48:00 min

Hacks for solving Interest Questions

05:15 min

Concepts: Compound Interest

13:13 min

Square Roots & Cube Roots

Trick to find Perfect Square Root

47:22 min

Trick & shortcut to find Cube Root of a number

15:59 min

How to find the square of a number 1 to 100?

21:20 min

Trick & Shortcut to find Non Perfect Square Root

09:56 min

Tips & Tricks: Square & Cube Roots

44:05 min

Probability

Examples: Probability

05:25 min

What is Probability?

05:03 min

Practice Questions: Probability

16:23 min

Example Marbles Drawn: Probability- 1

04:12 min

Examples Marbles drawn: Probability- 2

05:05 min

Fractions & Decimals

Decimals and Fractions: Shortcuts & Tricks to solve problems

46:18 min

Indices & Surds

What are Surds ?

01:56 min

Laws of Indices

08:53 min

How to Simplify Surds - 1

42:42 min

How to Simplify Surds - 2

12:36 min

Problem Set 1 (Surds and Indices) - Quantitative Aptitude

08:37 min

Problem Set 2 (Surds and Indices) - Quantitative Aptitude

06:16 min

How to Simplify Surds - 3

16:24 min

How to Simplify Surds - 4

19:36 min

Height & Distance

Explanation: Heights and Distances

13:17 min

Graph of linear equation

Graph of a Linear Equation in 2 Variables - 1

03:50 min

Examples: Graph of a linear equation

09:39 min

Tips & Tricks

Tips & Tricks: Fractions & Decimals

46:18 min

Tips & Tricks: Simplification

10:03 min

Tips & Tricks: Permutation & Combination

71:34 min

Tips & Tricks: Probability

67:38 min

Tips & Tricks: Mixture & Alligation

60:48 min

Tips & Tricks: Ratio & Proportion

58:31 min

Tips & Tricks: HCF & LCM

70:04 min

Tips & Tricks: Work & Wages

47:17 min

Tips & Tricks: Compound Interest

49:24 min

Tips & Tricks: Simple Interest

48:00 min

Tips & Tricks: Profit & Loss

54:02 min

Tips & Tricks: Discount

52:19 min

Tips & Tricks: Speed, Distance & Time

41:42 min

Tips & Tricks: Percentage

51:46 min

Tips & Tricks: Pipes & Cisterns

46:55 min

Tips & Tricks: Time & Work

43:15 min

Tips & Tricks: Boats & Streams

34:33 min

Tips & Tricks: Problems on Trains

44:07 min

Tips & Tricks: Problems on Numbers

32:16 min

Tips & Tricks: Problems on Ages

27:13 min

Tips & Tricks: Partnership

30:50 min

Tips & Tricks: Square & Cube Roots

44:05 min

Tips & Tricks: Averages

50:53 min

Tips & Tricks: Chain Rule

29:41 min

Tips & Tricks: Area & Perimeter

53:29 min

Tips & Tricks: Volume & Surface Area

48:27 min

Tips & Tricks: Height & Distance

43:20 min

Tips & Tricks: Logarithms

63:01 min

Tips & Tricks: Arithmetic Progression

57:46 min

Tips & Tricks: Geometric Progression

69:42 min

Tips & Tricks: Pie Chart

48:32 min

Tips & Tricks: Bar Graph

60:59 min

Tips & Tricks: Line Graph & Table Data

31:54 min

Tips & Tricks: Algebra

78:29 min

Tips & Tricks: Statistics

79:45 min

Quantitative Aptitude for Competitive Exams

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Video lectures for Quantitative Aptitude for Competitive Exams 2025 is part of Delhi Police Constable exam preparation. The videos have been prepared according to the Delhi Police Constable exam syllabus. The Video lectures, notes, tests & MCQs are made for Delhi Police Constable 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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