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The table in the image shows the reading preferences (in percentages) for students from two schools: one is a boys' school with 2,000 students, and the other is a girls' school with 2,500 students. The table lists the preferences for three categories: suspense, romance, and science fiction.

To calculate the combined percentage of students who prefer suspense books, we need to consider the weighted average based on the number of students in each school.

Let's break this down:

- **Percentage of boys who prefer suspense**: 22%
- **Percentage of girls who prefer suspense**: 40%
- **Number of students in the boys' school**: 2,000
- **Number of students in the girls' school**: 2,500

The combined percentage of students who prefer suspense is calculated by using the following weighted average formula:

\[
\text{Weighted Average} = \frac{(22\% \times 2000) + (40\% \times 2500)}{2000 + 2500}
\]

I will calculate this now.The combined percentage of students from both schools who prefer suspense books is **32%**.

Would you like more details or have any questions? 

Here are 5 related questions:
1. How would you calculate the combined percentage for another category, like science fiction?
2. What happens if the number of students in both schools were equal? How would the calculation change?
3. How do you calculate weighted averages in other real-life scenarios, like grades?
4. How do these reading preferences affect library book purchases in each school?
5. What if there was a third school? How would the formula adapt?

**Tip:** When dealing with percentages from different groups, always use the weighted average to account for the varying group sizes.

Combining both schools, what is the percentage of students who prefer suspense books?

Learn how to calculate the combined percentage of students who prefer suspense books using weighted averages from two schools. This problem covers key math concepts like percentages and weighted averages, suitable for students in Grades 8-10.

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