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    Question

    The length of a plot is three times its breadth. A

    playground measuring 216 square metres occupies half of the total area of the plot. What is the length of the plot?
    A 64 metre Correct Answer Incorrect Answer
    B 36 metre Correct Answer Incorrect Answer
    C 48 metre Correct Answer Incorrect Answer
    D 96 metre Correct Answer Incorrect Answer

    Solution

    Using formula, Area = lb, Let breadth of plot = x metre   Length = 3x metre According to question, ⇒ 3x2/2 = 216 ⇒ x2 = (216 x 2)/3 = 144 ⇒ x = 12 metre Therefore, length = 3 x 12 = 36 metre           

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