which class has 28% boys

Question

anonymous · Answer

I need more information.

anonymous · Answer

answer choices are:
A. Class A: 3 out of 20
B. Class B: 28 out of 40
C. Class C: 1 out of 28
D. Class D: 14 out of 50

anonymous · Answer

How do you determine the percentage of something?

anonymous · Answer

i dont know that is why i need help

anonymous · Answer

The percentage of something is another way of representing a fraction. The percent sign "%" means per 100. So if you have 25%, that means that is 25/100. 77% 77/100 and so on. The formula usually given to find percentage is:
$$\frac{x}{n} \times 100$$
Where n is the total number in a group and x is the subset you are trying to find the percentage of.
Example:
I take a quiz. There are 36 possible points on the quiz. I get 27 points. The percentage on my quiz is calculated like this:
$$\frac{27}{36} \times 100 = 75\%$$