Q: There are 3 times as many girls in the class than boys There is a total of 24 students in the class How many girls are in the class?

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-21

12

18 boys and 12 girls

To find the fraction of the class that are boys, you would divide the number of boys by the total number of students in the class. In this case, there are 12 boys and 16 girls, so a total of 12 + 16 = 28 students in the class. Therefore, the fraction of the class that are boys is 12/28, which simplifies to 3/7. So, 3/7 of the class are boys.

Let's denote the number of boys as 5x and the number of girls as 7x, where x is a positive integer. Since there are 6 more girls than boys, we have the equation 7x = 5x + 6. Solving for x, we get x = 3. Therefore, the total number of students in the class is 5x + 7x = 12x = 12 * 3 = 36 students.

Related questions

-21

56

9 boys

12

Since the ratio of boys to girls is 5 to 8, the total ratio parts is 5 + 8 = 13. To find how many boys are in the class, divide the total number of girls (40) by the total parts of the ratio (13), then multiply by the number of boys parts (5). Thus, there are 15 boys in the class.

1 to 2 = 5 to 10 so 15 students in all.

That would be a total of 335 students.

18 boys and 12 girls

45

Boys make up 40% of the class (12 boys out of 30 total students).

It is 8 : 26.

If the ratio of boys to girls is 12 to 3, then the total ratio is 12 + 3 = 15. To find how many girls are in the class, we divide the number of girls by the total ratio, 24 / 15 = 1.6. This means there are approximately 1.6 girls in the class. However, since we can't have a fraction of a girl, we can conclude that there are 2 girls in the class.