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      Question

      A number is initially increased by 30% and then reduced

      by 25%. What is the overall percentage change in the number?
      A 3.5% increase Correct Answer Incorrect Answer
      B 1.5% decrease Correct Answer Incorrect Answer
      C 2.5% decrease Correct Answer Incorrect Answer
      D 3.5% decrease Correct Answer Incorrect Answer
      E 2.5% increase Correct Answer Incorrect Answer

      Solution

      Let the original number be '100m' Final number = 100m X 1.3 X 0.75 = 97.5m Therefore, required percentage decrease = [(100m - 97.5m) ÷ 100m] X 100 = (2.5/100) X 100 = 2.5%

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