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      Question

      The cost price of an article is Rs. (4n + 90). It is

      marked 25% above its cost price and sold after allowing a discount of Rs. 150. If the selling price of the article is Rs. 1,950, then find the cost price of the article.
      A Rs.1680 Correct Answer Incorrect Answer
      B Rs.2210 Correct Answer Incorrect Answer
      C Rs.1520 Correct Answer Incorrect Answer
      D Rs.1100 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      ATQ, Marked price of article = 1.25 Γ— (4n + 90) = Rs. (5n + 112.5)
      Selling price of article = 5n + 112.5 βˆ’ 150 = Rs. (5n βˆ’ 37.5)
      So, 5n βˆ’ 37.5 = 1,950
      Or, 5n = 1,987.5
      Or, n = 397.5
      Therefore, cost price of article = 4 Γ— 397.5 + 90 = Rs. 1,680

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