A shopkeeper purchased an article for Rs. ‘a’ and marked it 150% above its cost price and sold it after giving two successive discounts of 250 and 20%, respectively and earned a profit of Rs. 4a/5. Find the marked price of the article.
Selling price of the article = a + (4a/5) = Rs. (9a/5) So, (9a/5) = (2.5 × a – 250) × 0.80 Or, 1.8a = (2.5a – 250) × 0.80 Or, 2.25a = 2.5a – 250 Or, 0.25a = 250 Or, a = 1000 So, marked price of the article = 2.5 × 1000 = Rs. 2500
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I. 4x² - 15x + 9 = 0
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I. x2 – 13x + 36 = 0
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I. 3x2 - 16x - 12 = 0
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I. 5x² + 17x + 6 = 0
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