Worked Example
Reasoning practice 4
For Class 9 Mathematics, explain or solve a types of numbers question from the chapter "Number Systems". Focus on reasoning practice and show the working clearly.
Step-by-step solution path
- Read the topic idea: Types of Numbers.
- Recall the core explanation from the chapter: Real numbers, irrational numbers, laws of exponents and their decimal expansions.
- Use the related formula "Rationalising Factor" as the main tool while solving.
- Write the reasoning in simple school-level language before the final answer.
Final learning answer
This example is centred on Types of Numbers. A strong solution should identify the correct data, apply Rationalising Factor, and explain each transition instead of jumping directly to the answer.