Cost Price and Selling Price — Mains Questions

Analyze the interplay between Cost Price, Selling Price, Marked Price, and Discount in determining the final profitability for a seller. Illustrate with a scenario where a seller aims for a specific profit percentage despite offering a discount.

Discuss how 'dishonest dealer' problems in quantitative aptitude reflect real-world challenges in consumer protection and market regulation. Provide two distinct methods for solving such problems, highlighting their efficiency.

Explain the concept of 'profit margin' versus 'profit percentage' and why this distinction is crucial for accurate financial analysis. Illustrate with an example where a seller claims a 25% profit margin, but the actual profit percentage is different.