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    Question

    Find the value of ‘x’ if x% of 600 + {1440 ÷ x of

    16} × 8 = 156
    A 15 Correct Answer Incorrect Answer
    B 6 Correct Answer Incorrect Answer
    C 9 Correct Answer Incorrect Answer
    D 12 Correct Answer Incorrect Answer

    Solution

    x% of 600 + {1440 ÷ x of 16} × 8 = 156

    Or, 6x + 720/x = 156

    Or, x2 – 26x + 120 = 0

    Or, x2 – 20x – 6x + 120 = 0

    Or, x(x – 20) – 6(x – 20) = 0

    Or, (x – 6)(x – 20) = 0

    Or, x = 6 or x = 20

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