Question

In a class of the students in a class are girls.

There are 28 boys.
What fraction of the class are boys?
How many students are in the class?

Answer 1

`Boys = 1 /4`

`Total =112`

Explanation:

Given

`Girls= 3/4` --- missing information

`Boys = 28`

Solving (a): The fraction that are boys

We have:

`Girls= 3/4`

This implies that

`Boys = 1 - Girls`

`Boys = 1 - 3/4`

`Boys = 1 /4`

Solving (b): Students in the class

If 1/4 are boys, then:

`Boys = (1)/(4) * Total`

We also have that:
`Boys = 28`

So:

`28= (1)/(4) * Total`

`28 * 4 = Total`

`112= Total`

`Total =112`