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.) (√1225 × 13.9) – (15.1 × 11) = ?
    A 395 Correct Answer Incorrect Answer
    B 225 Correct Answer Incorrect Answer
    C 325 Correct Answer Incorrect Answer
    D 405 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    √1225 = 35

    35 × 13.9 ≈ 35 × 14 = 490

    15.1 × 11 ≈ 15 × 11 = 165

    490 – 165 = 325

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