Question
A shopkeeper marked an article P% above its cost price
and sold it for Rs. 576 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) × 576 = Rs. 480 Marked price of the article = 480/0.8 = Rs. 720 P% = [(720 – 480)/480] × 100 = 50% Or, P = 50 Desired selling price = 480 × 1.6 = Rs. 768
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