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      Question

      Ratio of length to width of a rectangular field is 4:7.

      If the perimeter of the field is 440 metres, then find the area (in m2) of the field.
      A 11200 Correct Answer Incorrect Answer
      B 11000 Correct Answer Incorrect Answer
      C 12200 Correct Answer Incorrect Answer
      D 13200 Correct Answer Incorrect Answer

      Solution

      Let length and width of the rectangular field be β€˜4x’ metres and β€˜7x’ metres, respectively. So, 2(4x + 7x) = 440 Or, x = 20 Area of the field = 4x Γ— 7x = 28 Γ— (20)2 = 11200 m2

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