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.)

    39.99% of 159.98 = ?2 – 319.99% of 12.5 –

    49.98% of 129.99
    A 13 Correct Answer Incorrect Answer
    B 33 Correct Answer Incorrect Answer
    C 44 Correct Answer Incorrect Answer
    D 26 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 39.99% of 159.98 = ?2 – 319.99% of 12.5 – 49.98% of 129.99 40% × 160 ~ ?2 - 320 × (12.5)% - 50% × 130 ?2 ~ 64 + 320 × (1/8) + (1/2) × 130 ?2 ~ 64 + 40 + 65 ? ~ √169 ? ~ 13

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