Question

What is $90\%$ of $120$?

Answer 1

Hint: According to the question we have to calculate $90\%$ of $120$. In mathematics, a percentage is a number or ratio that represents a fraction of $100$. Here we can write $90\%$ as also $\dfrac{90}{100}$.
Here we will find the $90\%$ of $120$, for this we will follow some steps. We can write any percentage number into decimal numbers too. Here we can write $90\%$ as $0.90$ in decimal numbers.

Complete step by step solution:
In order to find the value of above question, we will follow some steps which are:
1 First we will multiply the number which is in percentage and the number value we have to find.
2. Then we will divide the above upcoming value with $100$.
Now, let n be the number which we have to calculate,
Now multiply $90$ with $120$ and then divide it with $100$, then we get
$\Rightarrow n=\dfrac{90\times 120}{100}$
Now simplifying it, then we get
$\begin{align}
  & \Rightarrow n=\dfrac{10800}{100} \\
 & \Rightarrow n=108 \\
\end{align}$

Hence we get $108$ is $90\%$ of $120$.

Note: Sometimes we get confused in these types of questions. Sometimes the question may be changed and it may be like $90$ is what percent of $120$? It is quite looking similar to the given question, but this question is different from the above question. Here the question is asking for the percentage value but in the given question, it was asking for a value of $90\%$ of $120$. If we calculate the value of $90$ is what percent of $120$ is $75\%$. But the answer to the given question is $108$. So always make sure that what the question is asking for.