Question

there are 3 students in a class who are left-handed. given that the percentage of left handed students in the class is 7.5%, find the total number of students in this class

Answer 1

40 total students

Step-by-step explanation:

Total students: 100%

Let the number of total students be x.

Solving stepwise:

7.5% : 100% --> 3 : x

`\rightarrow \sf (7.5)/(100) = (3)/(x)`

`\rightarrow \sf 7.5x = 3(100)`

`\rightarrow \sf 7.5x = 300`

`\rightarrow \sf x =40`