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      Question

      If the edge of the cube is increased by 50%, then find

      the percentage increase in the volume of the cube.
      A 200% Correct Answer Incorrect Answer
      B 250% Correct Answer Incorrect Answer
      C 237.5% Correct Answer Incorrect Answer
      D 225% Correct Answer Incorrect Answer

      Solution

      Let the edge of the cube be x unit
      Volume of cube = x³ cubic unit
      New edge = 1.5x unit
      New volume = (1.5x)³ = 3.375x³ cubic unit
      Increase in volume = 3.375x³ – x³ = 2.375x³ cubic unit
      Percentage increase = (2.375x³ / x³) × 100 = 237.5%

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