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    Question

    I. 81x - 117тИЪx + 40 = 0 II. 81y - 225тИЪy + 136

    = 0
    A if x < y Correct Answer Incorrect Answer
    B if x > y Correct Answer Incorrect Answer
    C if x тЙд y Correct Answer Incorrect Answer
    D if x = y or the relationship cannot be established. Correct Answer Incorrect Answer
    E if x тЙе y Correct Answer Incorrect Answer

    Solution

    I. 81x - 117тИЪx + 40 = 0 81x - 72тИЪx - 45тИЪx + 40 = 0 9тИЪx (9тИЪx - 8) -5 (9тИЪx - 8)= 0 (9тИЪx -5) (9тИЪx -8) = 0 x = 25/81, 64/81 II. 81y - 225тИЪy + 136 = 0 81y - 72тИЪy - 153тИЪy + 136 = 0 9тИЪy (9тИЪy -8) - 17 (9тИЪy - 8) = 0 (9тИЪy - 8) (9тИЪy-17) = 0 y = 289/81, 64/81 Hence, x тЙд y

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