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The image you provided shows a page containing a set of mathematical problems under a section titled "Directions for Questions 106-108." These problems appear to involve topics like percentage calculations, ratio, and other arithmetic operations.

### Here’s a breakdown of the questions on the page:

1. **Question 106**:
   - The problem involves a pie chart and a table listing the percentages of students choosing various subjects. The specific numbers in the question are asking for calculations based on these percentages. The exact wording isn't fully visible, but it involves determining the number of students opting for different subjects (Physics, Chemistry, Biology, etc.).

2. **Question 107**:
   - The question seems to involve a scenario where a student likes both Physics and Chemistry. It asks for the percentage of students who like both subjects based on the data provided in the table.

3. **Question 108**:
   - This question appears to deal with the ratio of the number of students who like Physics to those who like Chemistry.

4. **Question 109**:
   - The problem involves the difference between the number of students liking Physics and Chemistry, asking for a specific ratio.

5. **Question 110**:
   - This problem is asking to find the average number of students who like Physics, Chemistry, and Biology.

### To solve these, you'll need to:
- Interpret the percentages given in the table.
- Apply basic arithmetic operations such as multiplication, division, and percentage calculations.
- Understand concepts of ratio and average.

Would you like a detailed solution to one of these problems or an explanation of any specific concepts? Feel free to ask!

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**Relative Questions:**

1. What is the formula for calculating the percentage of a total number?
2. How do you find the average of a set of numbers?
3. What steps are involved in determining the ratio of two quantities?
4

Based on the following pie chart, answer the questions that follow:
The pie chart represents the number of students in a school who chose different subjects. The table provides the data in percentages.
106. If the total number of students who opted for Physics and Chemistry is 220, find the number of students who opted for Computer Science.
107. If the total number of students who opted for Chemistry is 220, find the number of students who opted for both Physics and Mathematics.
108. Find the difference between the number of students who opted for Physics and Mathematics.

Solve problems involving percentages and ratios based on a pie chart of student subject choices. Learn how to calculate the number of students choosing different subjects and understand key concepts in percentage calculations and arithmetic operations. Suitable for students in Grades 8-10.

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