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    Question

    (18.21)┬▓ - (12.9)┬▓ = 20% of 649.9 - ? +

    400.033 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 375 Correct Answer Incorrect Answer
    B 321 Correct Answer Incorrect Answer
    C 300 Correct Answer Incorrect Answer
    D 342 Correct Answer Incorrect Answer
    E 380 Correct Answer Incorrect Answer

    Solution

    (18.21)┬▓ - (12.9)┬▓ = 20% of 649.9 - ? + 400.033 => (18)┬▓ - (13)┬▓ = 20% of 650 - ? + 400 => 324 - 169 = 130 - ? + 400 => ? = 530 тАУ 155 => ? = 375

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