Answer :
Final answer:
The percentage of girls in the class is 60 percent, calculated by setting up an equivalent fraction and cross-multiplying.
Explanation:
To determine the percentage of girls in a class, you can use the formula for calculating percentages. In this context, the total number of students (which is 20) serves as the total or whole amount, and the number of girls (which is 12) represents the part you're trying to express as a percentage. You can set up an equivalent fraction where 12 is to 20 as the unknown percentage is to 100. By cross-multiplying and solving for the unknown, you get 60, which reveals that 60 percent of the students are girls.
Learn more about Calculating Percentages here:
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