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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.)

    89.87 × 3.21 + 60.32 = ? × (6.89 2 –

    19.21) 
    A 11 Correct Answer Incorrect Answer
    B 31 Correct Answer Incorrect Answer
    C 49 Correct Answer Incorrect Answer
    D 52 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 89.87 × 3.21 + 60.32 = ? × (6.892 – 19.21) ? × (72 – 19) ~ 90 × 3 + 60 ? × (49 – 19) ~ 270 + 60 ? × 30 ~ 330 ? ~ (330/30) ? ~ 11

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