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      Question

      A number undergoes a 35% increase, followed by a 20%

      decrease. What is the net percentage change in the original number?
      A 15% increase Correct Answer Incorrect Answer
      B 12% decrease Correct Answer Incorrect Answer
      C 10% increase Correct Answer Incorrect Answer
      D None of these Correct Answer Incorrect Answer

      Solution

      ATQ,

      Let the number be '100b'

      Final number = 1.35 × 0.80 × 100b = '108b'

      Required percentage increase = [(108b - 100b) ÷ 100b] × 100 = 8%

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