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    Question

    Find the total cost of plowing a square field, given

    that the shortest distance between two opposite corners of the square is 38 cm, and the plowing cost is Rs. 5 per square centimeter.
    A Rs.3000 Correct Answer Incorrect Answer
    B Rs.3600 Correct Answer Incorrect Answer
    C Rs.3610 Correct Answer Incorrect Answer
    D Rs.4500 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let length of side of the square field be 's' cm. According to question, √2 × s = 38 s = 19√2 cm Area of square field = (19√2) 2 = 722 cm2 Desired cost of ploughing = 722 × 5 = Rs.3610

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