Subject

    মানসিক দক্ষতা

    Topic

    সংখ্যাগত ক্ষমতা

    What is the next number in this sequence, 1, 11, 21, 1211, 111221 , 312211 ?

    ক)
    13112221
    খ)
    3221122
    গ)
    431121
    ঘ)
    32112

    Explanation

    This series describes each number that came before it: 1 [One] 11 [One One] 21 [Two One(s)] 1211 [One Two and One One(s)] 111221 [One One, One Two, and Two One(s)] 312211 [Three One(s), Two Two(s), and One One] The next number in the series is: 13112221 [One Three, One One, Two Two(s), Two One(s)]

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