Subject

    Verbal Reasoning

    Topic

    Number Series Completion

    21, 9, 21, 11, 21, 13, 21, ... What number should come next?

    ক)
    14
    খ)
    15
    গ)
    21
    ঘ)
    23

    Explanation

    In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise simple addition series that increases by 2, beginning with the number 9.

    Find Tutors

    View all Tutors