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.Solution
Let length and width of the rectangular field be ‘4x’ metres and ‘7x’ metres, respectively. So, 2(4x + 7x) = 440 Or, x = 20 Area of the field = 4x × 7x = 28 × (20)2 = 11200 m2
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