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    Question

    25.09 × (√15 + 19.83) = ? of 19.87 ÷

    4.03  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 150 Correct Answer Incorrect Answer
    B 180 Correct Answer Incorrect Answer
    C 134 Correct Answer Incorrect Answer
    D 120 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 25.09 × (√15 + 19.83) = ? of 19.87 ÷ 4.03 25 × (√16 + 20) ~ ? of 20 ÷ 4 25 × (4 + 20) ~ (? × 20) ÷ 4 25 × 24 × 4 ~ 20 × ? ? ~ (2400/20) = 120

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