Which value is closest to 85% of 25?
The Correct Answer and Explanation is :
To find the value closest to 85% of 25, we first need to calculate 85% of 25.
- Convert the percentage to a decimal:
- 85% can be written as a decimal by dividing by 100:
[
85\% = \frac{85}{100} = 0.85
]
- Multiply by the total:
- Now, we multiply this decimal by 25 to find 85% of 25:
[
0.85 \times 25 = 21.25
]
Thus, 85% of 25 is 21.25.
Understanding the Calculation
Calculating a percentage involves determining a part of a whole. In this case, we want to find out what portion (85%) of 25 is. The formula to calculate a percentage of a number is straightforward:
[
\text{Percentage of a Number} = \left(\frac{\text{Percentage}}{100}\right) \times \text{Total}
]
This formula allows you to scale any number based on the given percentage. By first converting the percentage to a decimal, you simplify the multiplication process.
Why Percentages Matter
Percentages are widely used in various fields, including finance, healthcare, education, and everyday life. Understanding how to calculate percentages enables individuals to make informed decisions, whether assessing discounts, interest rates, or statistical data.
In practical applications, you might often round percentages to whole numbers, especially in contexts where exact values aren’t critical. For example, if you were to round 21.25, you could round it to 21 or 22, depending on the required accuracy.
Knowing how to compute percentages also helps in interpreting data more effectively, which is essential in many professions, including nursing and healthcare. It allows professionals to evaluate patient care metrics, medication dosages, and outcomes, contributing to better health management practices.
In summary, 85% of 25 equals 21.25, and understanding how to compute this value aids in various practical applications.