



Problems involving changing the ratio of a mixture.
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tỉ số và tỷ lệ 2in1
- How can proportions be used to convert units?
- If a survey shows that 60 out of 100 people prefer brand A, what is the ratio of people who prefer brand A to those who prefer other brands?
- A bag contains red and blue balls in the ratio 3 5. If 8 blue balls are added, the ratio becomes 1 2. How many red balls were there initially?
- What is the ratio of the new area to the original area?
- If 15 is 25% of a number, what is the number?
- Ratio and Proportion in Data Analysis
- Understanding Ratios
- How are ratios used in financial calculations?
- Analyzing demographic data (e.g., population ratios).
- Give an example of inverse proportion.
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