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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.)

    29.98% of 249.897 = ?² –

    (4.98)²
    A 33 Correct Answer Incorrect Answer
    B 37 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 10 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    29.98% of 249.897 = ?² – (4.98) ²

    ? ² – 25 ~ 30% × 250

    ? ²~ 75 + 25

    ? ²~ 100

    ? ~ √100 ~ 10

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