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      Question

      An original figure is first enhanced by 25% and then

      reduced by 10%. What is the final overall percentage change?
      A 23.2% increase Correct Answer Incorrect Answer
      B 16.4% decrease Correct Answer Incorrect Answer
      C 21.5% increase Correct Answer Incorrect Answer
      D 12.5% decrease Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the original figure be 100b

      Final figure = 1.25 × 0.90 × 100b = 112.5b

      Overall percentage change = [(112.5b - 100b) ÷ 100b] × 100 = 12.5% increase

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