Question

Find the 10% of 900.

Answer 1

Hint: To find the percentage of a number, we need to be thorough with the concepts of division and multiplication. We need to express the percentage in terms of a number to find the answer.

Complete step by step answer:
The percentage actually means a part of something. To express a part of a number or to use a part of a number for other purposes, it becomes easy for people to express it in terms of percentage. Now the question comes: how to find the percentage of a number. Let us discuss this step by step.
The First step to find out the percentage of a number is to divide the required percentage by a hundred. That is, suppose, you want the $n\%$ of something. Then what you do is you divide the number $n$ with hundred. After dividing, you will get a number that might be in decimal if $n$ is less than a hundred.
Now, we multiply that number with our given number. Now in this case, $n$ is $10$ and the number is $900$. Therefore, if we divide $10$ by a hundred we get $0.1$. Now we multiply that number by $900$ to get the percentage. Therefore the required percentage is $900\times 0.1$ which is equal to $90$. So, the answer to the given question is $90$.

Note: Percentage is a very important concept. For example, if you want to denote the crime rate of a nation or a region, we cannot remember the exact number but we can easily remember the percentage. We can also determine the percentage of population growth per year and many other things.