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      Question

      A seller sold a product for Rs. 1152 after giving two

      identical discounts of x% each on the marked price of Rs. 1800. What is the value of x?
      A 10% Correct Answer Incorrect Answer
      B 18% Correct Answer Incorrect Answer
      C 20% Correct Answer Incorrect Answer
      D 25% Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      3600 Γ— (100 – x)% Γ— (100 – x)% = 2025

      1800 Γ— (100 – x)% Γ— (100 – x)% = 1152

      0.18 Γ— (100 – x)Β² = 1152

      (100 – x)Β² = 6400

      100 – x = 80

      x = 20

      So, the value of β€˜x’ is 20%

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