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.
The given ratio is 3 girls to 1 boy, which can also be written as 3/1.
In this ratio, there are a total of 3+1 = <<3+1=4>>4 equal parts.
To find the number of boys, we divide the total number of students by the total number of parts and then multiply by the number of parts representing boys.
Number of boys = (Number of students / Total parts) * Number of parts representing boys
= (400 / 4) * 1
= 100 * 1
= <<400/4*1=100>>100
Therefore, there are 100 boys in the school.
To find the number of boys in the school, we need to find the fraction of boys in the total student population.
The given ratio of girls to boys is 3 to 1, which can also be written as 3/1 or 3.
The total ratio is 3 + 1 = 4 (3 for girls, 1 for boys).
Now, we can find the fraction of boys by dividing the number of boys by the total number of parts in the ratio:
Fraction of boys = 1/4
To find the actual number of boys, we multiply the fraction of boys by the total number of students:
Number of boys = (1/4) * 400
Number of boys = 100
Therefore, there are 100 boys in the school.
To solve this problem, we first need to find the total number of parts in the ratio. The ratio of girls to boys is given as 3 to 1, which means there are 3 + 1 = 4 parts in total.
Next, we need to determine the value of each part. To do this, we divide the total number of students (400) by the total number of parts (4). This gives us 400 ÷ 4 = 100.
Since there is 1 part representing the number of boys, we can conclude that there are 1 × 100 = 100 boys in the school.