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    Question

    ? × 32.91 – 847.95 ÷ √16.4 – 13.982 =

    √24.7 × 24.04 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.) 
    A 25 Correct Answer Incorrect Answer
    B 65 Correct Answer Incorrect Answer
    C 45 Correct Answer Incorrect Answer
    D 16 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, ? × 32.91 – 847.95 ÷ √16.4 – 13.982 = √24.7 × 24.04 ? × 33 – 848 ÷ 4 – 142  ~ √25 × 24 ? × 33 – 212 – 196 ~ 120 ? × 33 ~ 120 + 212 + 196 ? ~ 528 ÷ 33 ? ~ 16

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