A shopkeeper marks the price of an article at ₹200. After allowing a discount of 10%, he still gains 20% on the cost price. What is the cost price of the article?
A.₹170
B.₹120
C.₹160
D.₹150✓ Correct
Explanation
SP = 200·0.9 = 180. CP·1.2 = 180, CP = 150.
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