Question

the ratio of boys to girls in a classroom is 1:6. if there are 70 students in a class, how many of them are girls?

Answer 1

60 girls

Explanation:

Given the ratio of boys to girls:

1 : 6

We can form the following ratios relating the number of boys and girls to the total number of students:

boys : students

1 : 7

girls : students

6 : 7

Now, we can represent the ratio of girls to total as a fraction, then multiply it by the total number of students.

`70\text{ students} * \frac{6\text{ girls}}{\text{7 students}}`

`= \boxed{60\text{ girls}}`