What price should a shopkeeper mark on an article by selling the article on Rs. 1200 he get 50% profit allowing discount of 20%? एक दुकानदार को 20 प्रतिशत छूट के बाद एक वस्तु को 1200 रू. में बचेने पर 50 प्रतिशत का लाभ होता है। तो अंकित मूल्य कितना होगा?

Selling price after 20% discount is Rs. 1200. This gives 50% profit on cost price. So 1200 = 1.5 × CP, giving CP = 1200/1.5 = Rs. 800. Marked price before 20% discount satisfies: 0.8 × MP = 1200. Therefore MP = 1200/0.8 = Rs. 1500. Verification: Cost = Rs. 800, Marked Price = Rs. 1500, Selling Price = 1500×0.8 = Rs. 1200, Profit = 1200-800 = Rs. 400 = 50% of 800.