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    Question

    What approximate value will come in place of question

    (?) in the following given expression? You are not expected to  calculate the exact value. (624.85 ÷ 25.16 + √(224.95))² – (√(1599.77) × 5) = ?
    A 2400 Correct Answer Incorrect Answer
    B 1800 Correct Answer Incorrect Answer
    C 1400 Correct Answer Incorrect Answer
    D 900 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    = (624.85 ÷ 25.16 + √(224.95))² – (√(1599.77) × 5) = (625 ÷ 25 + √(225))² – (√(1600) × 5) = (25 + 15)² – (40 × 5) = 40² – 200 = 1600 – 200 = 1400 Answer – C

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