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    Question

    Determine the value of ‘x’ if x% of 500 plus {1250

    ÷ x of 10} × 5 equals 130
    A 25 Correct Answer Incorrect Answer
    B 12 Correct Answer Incorrect Answer
    C 10 Correct Answer Incorrect Answer
    D 8 Correct Answer Incorrect Answer

    Solution

    ATQ,

    x% of 500 + {1250 ÷ x of 10} × 5 = 130

    Or, 5x + 625/x = 130

    Or, x² – 26x + 625 = 0

    Or, x² – 25x – x + 625 = 0

    Or, x(x – 25) – 1(x – 25) = 0

    Or, (x – 1)(x – 25) = 0

    Or, x = 1 or x = 25

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