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    Question

    What should come in place of the question mark (?) in the following number series.

    1240 600 ? 140 90

    25
    A 280 Correct Answer Incorrect Answer
    B 300 Correct Answer Incorrect Answer
    C 240 Correct Answer Incorrect Answer
    D 320 Correct Answer Incorrect Answer
    E 360 Correct Answer Incorrect Answer

    Solution

    1240 ÷ 2 - 20 = 600 600 ÷ 2 + 20 = 320 320 ÷ 2 – 20 = 140 140 ÷ 2 + 20 = 90 90 ÷ 2 – 20 = 25

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