The ratio of girls to boys in the school is 3 to 1. If there is a total of 400 students, how many are boys? The answer must be a whole number

Answer 1

Let the number of girls be 3x, where x is the common ratio.

The number of boys is x.

The total number of students is 3x + x = 400.

Combining like terms, we get 4x = 400.

Dividing both sides by 4, we get x = 100.

The number of boys is x = 100. Answer: \boxed{100}.