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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.) 31.08 × √? = 6207.3 ÷ 10.03
    A 330 Correct Answer Incorrect Answer
    B 250 Correct Answer Incorrect Answer
    C 400 Correct Answer Incorrect Answer
    D 851 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    31.08 × √? = 6207.3 ÷ 10.03

    31 × √? ~ 6207 ÷ 10

    31 × √? ~ 621

    √? ~ 20

    ? ~ 400

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