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

    Question

    What will come in place of (?) in the given number series.

    5, 10, 8, 16, 11, ?, 17
    A 12 Correct Answer Incorrect Answer
    B 22 Correct Answer Incorrect Answer
    C 13 Correct Answer Incorrect Answer
    D 17 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Look at alternate numbers:

    Odd positions:

    5 → 8 → 11 → 14 → (Add 3)

    So, next odd-position number = 11 + 3 = 14

    Even positions:

    10 → 16 → ?

    (10 to 16 = +6),

    so 16 + 6 = 22

    So missing number = 22

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