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    • Question

      If the edge of the cube is increased by 30%, then find the

      percentage increase in the volume of the cube.
      A 130% Correct Answer Incorrect Answer
      B 117% Correct Answer Incorrect Answer
      C 119.7% Correct Answer Incorrect Answer
      D 110% Correct Answer Incorrect Answer

      Solution

      Let the edge of the cube be x unit
      Volume of cube = x³ cubic unit
      New edge = 1.3x unit
      New volume = (1.3x)³ = 2.197x³ cubic unit
      Increase in volume = 2.197x³ – x³ = 1.197x³ cubic unit
      Percentage increase = (1.197x³ / x³) × 100 = 119.7%

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