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      Question

      The length and breadth of a rectangle are increased by

      8% and 5%, respectively. By how much percentage will the area of the rectangle increase
      A 13.4 Correct Answer Incorrect Answer
      B 12.8 Correct Answer Incorrect Answer
      C 16.2 Correct Answer Incorrect Answer
      D 3.4 Correct Answer Incorrect Answer

      Solution

      Short method- Icrease percent in the area= 8+5+(8Ă—5)/100 = 13+.40=13.4%

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