There are 25 students in French class. Twelve of them are girls. What percent of the students are bo

There are 13 boys (25-12).
13 is what percent of 25?

The easiest way to figure out percentages is to see how many things you'd have if it were out of 100 instead of the original number.

So,

If 12 students in class are girls, then 13 are boys.

If you had a class 4 times as big - 100 students - with the same proportions, you'd have 48 girls and 52 boys.

So your answer is 52%, or just over half.

Cycloptichorn

Your explanation is a bit confusing, Cyclo.

25 students = 100 % 13 boys = X
X = 13 x 100 ÷ 25 = 52 %

just do 13/25=.52*100= 52%

The way percentages are taught in elementary school is as follows.

1. A percentage is a type of fraction.
2. Express the problem first as an ordinary fraction. 13/25 (=boys/class total)
3. To change to a percentage we need "our normal fraction" of "the whole amount".
4. The "whole amount is 100%"
5. So we need 13/25 of 100% = 13/25 x 100%/1 (Note that "of" means "multiply")
6. Cancellation (learned before percentages) gives 52%