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    Question

    The perimeter of a rectangular field is 480 meters and the ratio between the length and breadth is 5:3. The area of the field is:

    A 7,200 mt. sq. Correct Answer Incorrect Answer
    B 15,000 mt. sq. Correct Answer Incorrect Answer
    C 54,000 mt. sq. Correct Answer Incorrect Answer
    D 13,500 mt. sq. Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the length and breadth be 5x and 3x respectively According to the Question Perimeter of a rectangular field = 2(l + b) = 480 2(5x+3x) = 480 x = 30 Length = 30 × 5 = 150 Breadth = 30 × 3 = 90 Area = 150 × 90 = 13500 m2

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