Answer:
40 total students
Explanation:
Total students: 100%
Let the number of total students be x.
Solving stepwise:
7.5% : 100% --> 3 : x
[tex]\rightarrow \sf \dfrac{7.5}{100} = \dfrac{3}{x}[/tex]
[tex]\rightarrow \sf 7.5x = 3(100)[/tex]
[tex]\rightarrow \sf 7.5x = 300[/tex]
[tex]\rightarrow \sf x =40[/tex]
