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    Question

    What will come in

    place of the question mark (?) in the following series? 55, 70, 45, 80, ?, 90
    A 30 Correct Answer Incorrect Answer
    B 35 Correct Answer Incorrect Answer
    C 40 Correct Answer Incorrect Answer
    D 45 Correct Answer Incorrect Answer
    E 50 Correct Answer Incorrect Answer

    Solution

    The given series follows the following pattern:

    55 + 15 = 70

    70 − 25 = 45

    45 + 35 = 80

    80 − 45 = 35

    35 + 55 = 90

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