What is 70 percent of 20?
The Correct answer and Explanation is :
The correct answer is: 14
To find 70 percent of 20, you can use the formula for calculating a percentage of a number. The formula is:
[
\text{Percentage of a number} = \left( \frac{\text{Percentage}}{100} \right) \times \text{Number}
]
In this case, we want to find 70 percent of 20. Plugging in the values:
[
\text{Percentage of 20} = \left( \frac{70}{100} \right) \times 20
]
Now, simplifying the calculation:
- Convert 70 percent to a decimal: ( \frac{70}{100} = 0.70 ).
- Multiply this decimal by 20:
[
0.70 \times 20 = 14
]
Thus, 70 percent of 20 is 14.
Explanation
Understanding percentages is essential in many aspects of daily life, from financial calculations to statistical data analysis. A percentage represents a fraction out of 100, allowing us to express proportions clearly. For example, if you receive a 70 percent discount on an item, you are paying only 30 percent of the original price.
When you want to calculate a percentage of a particular value, like in this case with the number 20, you multiply the decimal form of the percentage (0.70 for 70 percent) by that number. This method can be applied to any percentage and any whole number, making it a versatile tool for quick calculations.
Calculating percentages is often encountered in various scenarios, including budgeting, shopping discounts, grading in education, and even statistics in research. By mastering this skill, you can make more informed decisions and better understand numerical information in your everyday life.
In summary, to calculate 70 percent of 20, convert the percentage to a decimal and multiply it by the number. This straightforward calculation yields the result of 14, illustrating the practicality of understanding percentages in real-world applications.