An article is sold at 20% profit. If its cost price and selling price are both decreased by Rs. 100, the profit percentage becomes 25%. Find the original cost price. MCQ with Answer and Explanation
An article is sold at 20% profit. If its cost price and selling price are both decreased by Rs. 100, the profit percentage becomes 25%. Find the original cost price.
A. Rs. 600
B. Rs. 450
C. Rs. 400
D. Rs. 500
Answer: Option D
Solution (By JKSSB Mock Tests)
Let original CP = x. Original SP = 1.2x. New CP = x - 100. New SP = 1.2x - 100. New profit = 25%. So, 1.2x - 100 = 1.25(x - 100). 1.2x - 100 = 1.25x - 125. 0.05x = 25. x = 500.
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