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      Question

      In measuring the sides of a rectangle, there is an

      excess of 15% on one side and 10% deficit on the other. Then the error percent in the area is
      A 2% Correct Answer Incorrect Answer
      B 3.5% Correct Answer Incorrect Answer
      C 5.6% Correct Answer Incorrect Answer
      D 0.8% Correct Answer Incorrect Answer

      Solution

      Using the formula, Required percentage = [a + b + (ab/100)]% Negative sign for decrease = [15 - 10 - {(15 x 10)/100}] % = 3.5%

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