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    Question

    What will come in the place of question mark (?) in the given expression?

    (? × 3)2 - 85 = 115 × 5 +

    69
    A 18 Correct Answer Incorrect Answer
    B 12 Correct Answer Incorrect Answer
    C 9 Correct Answer Incorrect Answer
    D 20 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, (? X 3)2 - 85 = 115 X 5 + 69 (? X 3)2 = 85 + 575 + 69 (? X 3)2 = 729 ? X 3 = ±27 ? = 27 ÷ 3 = ±9

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