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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.) (27.92²- ?) ÷ 1.93 = 560.93 - 329.01
    A 365 Correct Answer Incorrect Answer
    B 320 Correct Answer Incorrect Answer
    C 345 Correct Answer Incorrect Answer
    D 385 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    (27.92²- ?) ÷ 1.93 = 560.93 - 329.01

    (28²- ?) ÷ 2 ~ 561 - 329

    (784 - ?) ÷ 2 ~ 232

    784 - ? ~ 464

    ? ~ 784 - 464

    ? ~ 320

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