Algebra-1

Question Analysis
This question evaluates the student's ability to use proportions to solve a real-world problem. The key is to set up the proportion correctly and then solve for the unknown.

Key Concept Explanation
A proportion is an equation stating that two ratios are equal. In this case, the ratio of boys to girls is given, and the number of girls is known, so we can find the number of boys.

Step-by-step Solution
1. Set up the proportion:
2. Cross-multiply: