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      Question

      A number is increased by 45% and then decreased by 30%.

      What is the overall percentage change (increase or decrease) in the number?
      A 1.5% increase Correct Answer Incorrect Answer
      B 2.5% increase Correct Answer Incorrect Answer
      C 2.5% decrease Correct Answer Incorrect Answer
      D 1.5% decrease Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Let the number be '100y' Final number = 1.45 X 0.7 X 100y = 101.5y Therefore, percentage increase = [(101.5y - 100y) ÷ 100y] = 1.5%

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