By selling an article for ₹600, a person made a profit of 50%. What was the cost price of this article?

₹300 ₹450 ₹400 ₹350

₹400

The selling price = 600 Profit = 50% = \(\frac{1}{2}\) =  \(\frac{Profit}{CP}\) SP = 2 + 1 = 3 3 = 600 then, 2 = ₹400