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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.) (251.98 ÷ √81.02) X 13.02 - 3.99⁴ = ? X 12.01
    A 33 Correct Answer Incorrect Answer
    B 62 Correct Answer Incorrect Answer
    C 21 Correct Answer Incorrect Answer
    D 9 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    (251.98 ÷ √81.02) X 13.02 - 3.99⁴ = ? X 12.01

    (252 ÷ √81) X 13 - 4⁴ ~ ? X 12

    (252 ÷ 9) X 13 - 256 ~ ? X 12

    28 X 13 - 256 ~ ? X 12

    364 - 256 ~ ? X 12

    ? ~ (108/12)

    ? ~ 9

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