• Number Series Rules with solved Problems: Part I

    Number Series Rules with solved Problems

    Series is an important chapter from banking examination point of view. Following are some of the important rules or order on which the number series can be made :-

    1. Pure Series

    In this type of number series, the number itself obeys certain order so that the character of the series can be found out.The number itself may be.

    Example :121, Perfect Cube

    Example :6859, 5832, 4913, 4096, 3375, ?

    Answer - 2744

    Difference Series

    Example :1348, 1338, 1318, 1288, 1248, ?

    Answer - 1198

    Ratio Series

    Example :336, 168, 84, 42, 21, ?

    Answer - 10.5

    Mixed Series

    Example :222, 441, 1321, 2639, 7915, ?

    Answer - 15827

    Geometric Series

    Example 1. 5, 35, 245, 1715, ?

    Ans. 12005

    Examples 2. 43923,3993, 363, 33, ?

    Ans. 3

    Two Tier Arithmetic Series

    Other Types

    To find the odd number from the number series. In this type of series the above rules are also followed.