New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The following series are based on a specific pattern. In these series, one number is wrong. Find the odd one.

    8, 7, 12, 35, 128,

    635
    A 8 Correct Answer Incorrect Answer
    B 12 Correct Answer Incorrect Answer
    C 35 Correct Answer Incorrect Answer
    D 7 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    8 × 1 – 1 = 7 7 × 2 – 2 = 12 12 × 3 – 3 = 33 33 × 4 – 4 = 128 128 × 5 – 5 = 635

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