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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

User Ah Bon
by
7.4k points

1 Answer

3 votes

Answer:

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

User Ahmed Meraj
by
8.2k points

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