A 10 percent profit means the selling price equals 110 percent of the cost price. Dividing 220 by 1.10 gives an original cost price of 200, so 200 is correct.
A pen is sold for 220 at a 10% profit. What was its original price?
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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.