Need Help?

Get in touch with us


Percent – Concept and Its Uses

Sep 13, 2022


What is Percent? 

Percent can be defined as “of one hundred.” 

Cent” comes from Latin and means 100

Many words have come from the root cent such as century, centimeter, centipede & cent. 

Three ways to represent the percent are: 



Number line 

Equivalent fraction  

Let’s understand the metric units of mass, what they are in actuality.  

In a class survey, it is found that 6 out of 10 students like maths. Now let’s understand it as percent. 

Now let’s use a different method to understand the percent. 

Use the number line to represent the percent 


Percent is always compared to 100. 

percent presentation

Note: Percent is always compared to 100(As a whole quantity)  

More Word Problems: Understand Percent 

Questions1:- If AB represents 20%, what is the length of line segment that is 100%? 


Here AB = 20%  

For 100% = 20% × 5 

                    = 100% 

Similarly length of segment is, 

                    = 6 × 5 

                    = 30 m 

Question2: – If the blue part of the circle represents 20% of students, what is the total strength of students?  


Here, blue part of circle = 20%  

For 100% = 20% × 5 

                    = 100% 

Similarly total number of students is, 

                    = 30 × 5 

                    = 150 students. 

pie chart

Question3: – If one part of the rectangle represents 10% of boys in the auditorium, what is the total number of boys in the auditorium?  


Here, one part of rectangle represents = 10% 

For 100% = 10% × 10 

                    = 100% 

Similarly total number of boys in auditorium, 

                    = 23 × 10 

                    = 230 boys. 

Step: Count the number of different color blocks and divide by total number of blocks. 

Green blocks percent: 


Yellow blocks percent: 

24100= 24%24100= 24%

Purple blocks percent: 


Understand percent-Example: 

pie chart


Related topics

Composite Figures – Area and Volume

A composite figure is made up of simple geometric shapes. It is a 2-dimensional figure of basic two-dimensional shapes such as squares, triangles, rectangles, circles, etc. There are various shapes whose areas are different from one another. Everything has an area they occupy, from the laptop to your book. To understand the dynamics of composite […]

special right triangles_01

Special Right Triangles: Types, Formulas, with Solved Examples.

Learn all about special right triangles- their types, formulas, and examples explained in detail for a better understanding. What are the shortcut ratios for the side lengths of special right triangles 30 60 90 and 45 45 90? How are these ratios related to the Pythagorean theorem?  Right Angle Triangles A triangle with a ninety-degree […]

simplify algebraic expressions

Ways to Simplify Algebraic Expressions

Simplify algebraic expressions in Mathematics is a collection of various numeric expressions that multiple philosophers and historians have brought down. Talking of algebra, this branch of mathematics deals with the oldest concepts of mathematical sciences, geometry, and number theory. It is one of the earliest branches in the history of mathematics. The study of mathematical […]

solve right triangles

How to Solve Right Triangles?

In this article, we’ll learn about how to Solve Right Triangles. But first, learn about the Triangles.  Triangles are made up of three line segments. These three segments meet to form three angles. The lengths of the sides and sizes of the angles are related to one another. If you know the size (length) of […]


Other topics