54 is 75% of what number?
A. 36
B. 72
C. 64
D. 78.5
Explanation
To solve this problem, we need to use the formula for finding the percentage of a number. The formula is:
Percentage = (Part/Whole) x 100
We know that 54 is 75% of some numbers, so we can write:
54 = (75/100) x Whole
To solve for the whole, we can divide both sides of the equation by 100/75
54 * 100 / 75 = Whole
72 = Whole
Therefore, 54 is 75% of 72, which is answer choice B.
Understanding Percentages
Percentages are a way of expressing a fraction or portion of a whole as a percentage of 100. To find the percentage of a number, you can use the formula:
Percentage = (Part/Whole) x 100
For example, if you want to find 20% of 50, you can use the formula:
Percentage = (20/100) x 50
Percentage = 0.2 x 50
Percentage = 10
Therefore, 20% of 50 is 10.
Percentages are commonly used in a variety of fields, including finance, statistics, and science. It is important to understand how to calculate percentages and use them in real-world situations.