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

    Question

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

    6, 7, 16, 51, 208,

    ?
    A 1015 Correct Answer Incorrect Answer
    B 1030 Correct Answer Incorrect Answer
    C 1045 Correct Answer Incorrect Answer
    D 1024 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    6 × 1 + 1 = 7 7 × 2 + 2 = 16 16 × 3 + 3 = 51 51 × 4 + 4 = 208 208 × 5 + 5 = 1045

    Practice Next

    Relevant for Exams: