Question

Increase 180 by 25%.

Answer 1

Hint: To solve this question, we will be following the below given steps:-
Firstly, we will calculate 25% of 180.
Then, we shall add the result to 180.
Hence, 180 will be increased by 25%.
For solving any such question, we follow the same steps to obtain the answer.
We can also write 25% as \[\dfrac{25}{100}\] because percent means per hundred.

Complete step by step answer:
Let us now solve this question.
We shall follow the steps mentioned in the hint provided above.
Firstly we will calculate 25% of 100.
\[\begin{align}
  & \Rightarrow 25\%\ \ of\ \ 180 \\
 & \Rightarrow 25\%\ \ \times \ \ 180 \\
 & \Rightarrow \dfrac{25}{100}\ \ \times \ \ 180 \\
 & \Rightarrow \dfrac{1}{4}\ \ \times \ \ 180 \\
 & \Rightarrow 45 \\
\end{align}\]
So now, we will add 45 to 180.
\[\Rightarrow 180\ \ +\ \ 45\ \ =\ \ 225\]
So, the answer is 225.

Thus, when we will increase 180 by 25%, then the answer is 225.

Note: If instead of increase, the question contained decrease, then the solution would be changed. We will follow the following steps:-
We shall firstly calculate 25% of 180.
Whatever will be the answer, we shall subtract it from 180.
Thus, we will get the answer.
One must do all the calculations in this question very carefully. If the student makes any mistake in the calculations, then the answer so obtained will not be correct.
Also not only in this question, the students must be very careful while solving any such questions as if there is any mistake in the calculus, then the answer can come out to be wrong.