Worked Example
Revision challenge 9
For Class 8 Mathematics, explain or solve a compound interest question from the chapter "Comparing Quantities". Focus on revision challenge and show the working clearly.
Step-by-step solution path
- Read the topic idea: Compound Interest.
- Recall the core explanation from the chapter: Discount, tax, profit-loss, simple interest and compound interest.
- Use the related formula "Discount" 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 Compound Interest. A strong solution should identify the correct data, apply Discount, and explain each transition instead of jumping directly to the answer.
Related formula
Discount
SP = MP - Discount = MP × (100-Discount%)/100