1. The problem is to understand and solve percentage questions. 2. Percentage means "per hundred" and is denoted by the symbol %. 3. The formula to find the percentage of a number is $$\text{Percentage} = \frac{\text{Part}}{\text{Whole}} \times 100$$. 4. To find the part when given the percentage and whole, use $$\text{Part} = \frac{\text{Percentage}}{100} \times \text{Whole}$$. 5. To find the whole when given the part and percentage, use $$\text{Whole} = \frac{\text{Part} \times 100}{\text{Percentage}}$$. 6. Example: What is 20% of 50? 7. Using the formula for part: $$\text{Part} = \frac{20}{100} \times 50 = 10$$. 8. So, 20% of 50 is 10. 9. Another example: 15 is what percent of 60? 10. Using the percentage formula: $$\text{Percentage} = \frac{15}{60} \times 100 = 25\%$$. 11. So, 15 is 25% of 60. 12. These steps help solve any percentage question by identifying the part, whole, or percentage and applying the correct formula.