Question
The cost price (in rupees) of an article is (20x + 50)
and its marked price is (25x + 125). During a festive sale, the shopkeeper offers a discount of 20% on the marked price and sells the article for 30x rupees. What is the cost price of the article?Solution
ATQ, Marked Price = 25x + 125 Discount = 20% ⇒ Selling Price after discount = 0.8 × (25x + 125) = 20x + 100 Given he sells it for 30x rupees: 20x + 100 = 30x 100 = 10x x = 10 Cost Price = 20x + 50 = 20 × 10 + 50 = 250
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