• Number series for SBI clerk

    1.    64 , 32 , 16 , 8 , ____

    A. 2
    B. 1
    C. 4
    D. 6

    2.     10000 , 2000 , 400 , 80 , 16 , 3.2 , ___


    A. 0.38
    B. 0.45
    C. 0.64
    D. 0.54

    3.    17 , 52 ,  158 , 477 ,  ___ ,  4310


    A. 1433
    B. 1432
    C. 1434
    D. 1435

    4.   11 , 9 , 15 , 41 , 159 , ____


    A. 785
    B. 789
    C. 797
    D. 769
    E. 771

    5.  31 , 44 , 65 , ___ , 139 , 196


    A. 75
    B. 85
    C. 89
    D. 96
    E. 56

    Answer :
    1. C
    2. C
    3. D
    4. B
    5. D

    Solution :
    1. Every number divided by 2 then final value get 4 .

    2. The pattern is :
    10000 ÷ 5 = 2000
    2000  ÷ 5  = 400
    400 ÷ 5 = 80
    80 ÷ 5 = 16
    16 ÷ 5 = 3.2
    3.2 ÷ 5 = 0.64

    3. The pattern is :
    17 × 3 + 1 = 52
    52 × 3 + 2 = 158
    158 × 3 + 3 = 477
    477 × 3 + 4 = 1435
    1435 × 3 + 5 = 4310

    4. The pattern is :
    11 × 1 - 2 = 9
    9 × 2  - 3  = 15
    15 × 3 - 4 = 41
    41× 4 - 5 = 159
    159 × 5 - 6 = 789

    5. The pattern is :
    31 + (  4^2 - 3 )  = 44
    44 + ( 5^2 - 4 )   = 65
    65 + ( 6^2 - 5 )   = 96
    96 + ( 7^2 - 6 )   = 139
    139 + ( 8^2 - 7 ) = 196





























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