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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.)

    19.99% of 79.98 = ?2– 159.99% of

    12.5
    A 42 Correct Answer Incorrect Answer
    B 19 Correct Answer Incorrect Answer
    C 6 Correct Answer Incorrect Answer
    D 25 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 19.99% of 79.98 = ?2 – 159.99% of 12.5 20% of 80 ~ ?2 – 160 of 12.5% ? 2  ~ (1/8) × 160 + 16 ?2  ~ 20 + 16 ? ~ √36 ? ~ 6

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