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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.)

    (3/8) × 479.84 + (2/5) × 449.67 = ? ×

    12.25 
    A 10 Correct Answer Incorrect Answer
    B 62 Correct Answer Incorrect Answer
    C 30 Correct Answer Incorrect Answer
    D 55 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, (3/8) × 479.84 + (2/5) × 449.67 = ? × 12.25 (3/8) × 480 + (2/5) × 450 ~ ? × 12 (3 × 60) + (2 × 90) ~ ? × 12 ? ~ 360 ÷ 12 ? ~ 30

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