25% of 72 is what value? 21 18 12 7
The Correct Answer and Explanation is :
The correct answer is: 18
To find 25% of 72, we can use a simple mathematical calculation. The percentage (25%) can be expressed as a fraction: 25% is equivalent to ( \frac{25}{100} ) or ( \frac{1}{4} ). Therefore, calculating 25% of 72 can be done in two main steps:
- Convert the percentage to a decimal:
[
25\% = \frac{25}{100} = 0.25
] - Multiply the decimal by the number:
[
0.25 \times 72
]
To perform the multiplication, you can do it as follows:
- First, break down 72:
[
0.25 \times 72 = \frac{72}{4} = 18
]
So, 25% of 72 is 18.
To verify this, we can also use a method based on understanding percentages. Percentages are simply parts out of 100. When we say 25%, we are looking for 25 parts of a total of 100 parts. If you want to find what 25% of 72 is, you can think of it as dividing 72 into four equal parts (because 100% divided by 25% equals 4).
When we divide 72 by 4:
[
72 \div 4 = 18
]
This confirms our previous calculation.
In practical terms, understanding percentages is crucial, especially in various fields like finance, healthcare, and education. For example, in healthcare, a nurse might need to calculate medication dosages based on a patient’s weight, which often involves percentages. In finance, percentages are vital for calculating interest rates or discounts. Hence, mastering the concept of percentages, such as calculating 25% of a number, is an essential skill that can be applied in many real-life scenarios.
Thus, the correct answer to the question is 18.