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

    Question

    What will come at the place of questions mark (?) in the below given series:

    9 19 39 ? 159

    319
    A 109 Correct Answer Incorrect Answer
    B 79 Correct Answer Incorrect Answer
    C 99 Correct Answer Incorrect Answer
    D 139 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    9×2 + 1 = 19 19×2 + 1 = 39 39×2 + 1 = 79 79×2 + 1 = 159 159×2 + 1 = 319

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