Q. A trader sells an article at 10% profit. If both the cost price and selling price are increased by ₹100, the profit becomes 8%. What is the original cost price?
✅ Correct Answer: (A)
₹400
Explanation: Let CP = x. Original SP = 1.1x. New condition: 1.1x + 100 = 1.08(x + 100). Thus, 0.02x = 8, so x = ₹400. Therefore, the correct answer is ₹400.
Explanation by: Krishna Sharma
Let CP = x. Original SP = 1.1x. New condition: 1.1x + 100 = 1.08(x + 100). Thus, 0.02x = 8, so x = ₹400. Therefore, the correct answer is ₹400.