Question
A chair is sold for Rs 720 after giving a discount of
10% on its marked price. The cost price of the chair is Rs 640. If it is sold at the marked price, then the profit percentage will be:Solution
Let the marked price of the article be 10a According to the question, 10a - 10a × 10% = 720 ⇒ 9a = 720 ⇒ a = 720/9 = 80 So, the marked price of the chair = 10 × 80 ⇒ Rs. 800 Now, Profit on the chair when it is sold at marked price = 800 - 640 ⇒ Rs. 160 Profit % = (160/640) × 100 ⇒ 25 ∴ The profit percentage will be 25%
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