CampusFin

Alok sold a book at a loss of 20%. If the selling price had been increased by ₹ 210, there would have been a gain of 10%. What was the cost price of the book?

Review the verified answer and explanation for this PPSC Punjab Public Service Commission past-paper question on CampusFin.

Alok sold a book at a loss of 20%. If the selling price had been increased by ₹ 210, there would have been a gain of 10%. What was the cost price of the book? Answer: 700

The 30 percentage-point swing between a 20% loss and a 10% gain corresponds to the ₹210 price increase, meaning 30% of the cost price equals ₹210, giving a cost price of ₹700.

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.