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    • Question

      The cost of fencing a rectangular field at the rate of

      Rs. 7/metre is Rs. 350. If the length of the field is 11 metres more than its breadth, then find the length of the rectangular field.
      A 28 metres Correct Answer Incorrect Answer
      B 23 metres Correct Answer Incorrect Answer
      C 20.5 metres Correct Answer Incorrect Answer
      D 18 metres Correct Answer Incorrect Answer
      E 22 metres Correct Answer Incorrect Answer

      Solution

      Let the length of the rectangular field be ‘l’ m Breadth of the rectangular field = (l – 11) m Therefore, perimeter of the rectangular field = 2 ×(l + l – 11) = (4l – 22) m According to the question, 4l – 22 = 350/7 Or, 4l = 50 + 22 Or, l = 72/4 = 18 metres

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