Q. A trader sells an article at a profit of 30%. If both the cost price and selling price are increased by ₹200, the profit becomes 20%. Find the original cost price.
✅ Correct Answer: (A)
₹400
Explanation: Let CP = x. Original SP = 1.3x. Given 1.3x + 200 = 1.2(x + 200). Thus, 0.1x = 40, so x = ₹400. Therefore, the correct answer is option1.
Explanation by: Krishna Sharma
Let CP = x. Original SP = 1.3x. Given 1.3x + 200 = 1.2(x + 200). Thus, 0.1x = 40, so x = ₹400. Therefore, the correct answer is option1.