Question
A shopkeeper marked an article P% above its cost price
and sold it for Rs. 1620 after giving a discount of 20%. If the ratio of cost price and selling price of the article is 25:30, respectively, then find the selling price if the article is sold at a profit of (P + 10)%.Solution
Cost price of the article = (25/30) × 1620 = Rs. 1350 Marked price of the article = 1620/0.8 = Rs. 2025 P% = [(2025 – 1350)/1350] × 100 = 50% Or, P = 50 Desired selling price = 1350 × 1.6 = Rs. 2160
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