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

    Question

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

    9 49 251 ? 2999

    5989
    A 679 Correct Answer Incorrect Answer
    B 997 Correct Answer Incorrect Answer
    C 889 Correct Answer Incorrect Answer
    D 897 Correct Answer Incorrect Answer
    E 779 Correct Answer Incorrect Answer

    Solution

    9 × 6 – 5 = 49 49 × 5 + 6 = 251 251 × 4 – 7 = 997 997 × 3 + 8 = 2999 2999 × 2 – 9 = 5989

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