Algebra-1

Question Analysis
This question tests the student's ability to apply the concept of proportions to a real-world scenario, specifically using the given ratio to find the number of boys in the class.

Key Concept Explanation
The key concept here is the use of proportions to solve real-world problems involving comparisons.

Step-by-step Solution
1. Write down the given ratio:
2. Set up the proportion with the known number of girls:
3. Apply the cross-multiplication rule:

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