Question

What is 30% of 20?

Answer 1

Hint: This question is from the topic of algebra. In this question, we will find out the value of 30% of 20. In solving this question, we will first know about the term percentage. After that, we will know the formula of % (or, percentage). After that, we will find out the 30% of the number 20 using the formula of percentage. After solving the further question, we will get our answer.

Complete step by step answer:
Let us solve this question.
In this question, we have asked to find out the value of 30% of 20.
So, let us first know about the term percentage.
The mathematical expression for the term percentage is ‘%’. The percentage of any number becomes a part of that number.
Whenever, we have to find the percentage of any number, then the formula for finding the percentage of that number is used as
\[\dfrac{A}{B}=P\%=\dfrac{P}{100}\]
The formula for percentage can also be written as
\[P\%\text{ of }B=\dfrac{P}{100}\times B=A\]
Where, B is a number, from which we have to find the percentage, A is a number which is a part of B, and P is the number which is in terms of percentage.
Now, let us find the value of 30% of 20.
So, using the formula of percentage that is \[P\%\text{ of }B=\dfrac{P}{100}\times B=A\], we can write
\[30\%\text{ of 20}=\dfrac{30}{100}\times 20\]
The above equation can also be written as
\[\Rightarrow 30\%\text{ of 20}=\dfrac{3}{1}\times 2=6\]

So, we get that the 30% of 20 is 6.

Note: As this question is from the topic of algebra, so we should have a better knowledge in that topic to solve this type of question easily. We should know about the term percentage. We should know the formula of percentage. Whenever we have to find the value of P% of B, then we will write the formula as \[P\%\text{ of }B=\dfrac{P}{100}\times B\].