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    Question

    The diameter of a circular field is equal to the side of

    a square┬а field. If the total cost of fencing the circular field is Rs. 1210 at the┬а rate of Rs.11/m, what is the perimeter of the square fields?
    A 98 m Correct Answer Incorrect Answer
    B 140 m Correct Answer Incorrect Answer
    C 56 m Correct Answer Incorrect Answer
    D 28 m Correct Answer Incorrect Answer

    Solution

    Let the diameter of circular field is 2r, and radius = r Acoording to question, 2 x (22/7) x r = 1210/11 2 x (22/7) x r = 110 r = 17.5 m Diameter =2r = 35 m Perimeter of square field = 4 x 35 = 140 m

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