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    Question

    What approximate value will come in place of the question

    mark (?) in the following question? (Note: You are not expected to calculate the exact value.)(?² + √15.9) ÷ 4.98 = 12.89 X 3.97
    A 14 Correct Answer Incorrect Answer
    B 10 Correct Answer Incorrect Answer
    C 16 Correct Answer Incorrect Answer
    D 28 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    (?² + √15.9) ÷ 4.98 = 12.89 X 3.97

    (?² + √16) ÷ 5 ~ 13 X 4

    (?² + 4) ÷ 5 ~ 52

    ?² + 4 ~ 260

    ?²~ 256

    ? ~ 16

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