Question

A group of five students contains 4 boys and 1 girl. Which of the following statements are correct?

• A. The fraction of girls in the group is $\frac{1}{4}$.
• B. The ratio of boys to girls is 4 : 1.
• C. The fraction of boys in the group is $\frac{4}{5}$
• D. The ratio of girls to boys is 1 : 5.

Answer 1

Answer: (B), (C)

The fraction of boys in the group is $\frac{4}{5}$

A fraction is a number that represents a part of the whole or a part of the group. On the other hand, a ratio is a comparison of two quantities.

In a group of five students containing 4 boys and 1 girl,

the fraction of girls in the group is $\frac{1}{5}$.

and the fraction of boys in the group is $\frac{4}{5}$.

The denominator will always be five because the whole group consists of five students.

The ratio of number of girls to number of boys is 1:4

and the ratio of the number of boys to the number of girls is 4:1.

The ratio of number of girls to the total number of students is 1:5

and the ratio of boys to the total number of students is 4:5.