Quantitative Aptitude: Number Series Set 106

Banya

Directions(1-10): Find the missing term ‘?’ of the following series.

  1. 125,124,?,111,95,70
    100
    90
    80
    70
    120
    Option E
    -1,-4,-9,-16,-25
    ? = 120

     

  2. 16,24,36,54,?,121.5
    77
    89
    70
    93
    81
    Option E
    +16/2,+24/2,+36/2,+54/2,+81/2
    ? = 81

     

  3. 10,?,23,70,281,1406
    13
    10
    7
    11
    9
    Option D
    *1+1, *2+1, *3+1, *4+1, *5+1
    ? = 11

     

  4. 16,20,29,45,75,106
    66
    78
    70
    82
    90
    Option C
    +2^2,+3^2,+4^2,+5^2,+6^2
    ? = 70

     

  5. 32,41,59,86,122,?
    189
    178
    167
    155
    145
    Option C
    +9*1, +9*2, +9*3, +9*4, +9*5
    ? = 167

     

  6. 17,28,39,?,61,72
    45
    50
    30
    35
    20
    Option B
    +11,+11,+11,+11,+11,+11
    ? = 50

     

  7. 0,6,24,?,120,210
    67
    50
    60
    48
    42
    Option C
    1^3-1
    2^3-2
    3^3-3
    4^3-4
    5^3-5
    6^3-6
    ? = 60

     

  8. 79,102,131,162,?,240
    178
    199
    180
    156
    167
    Option B
    +23,+29,+31,+37,+41
    ? = 199

     

  9. 112,113,110,?,108,117
    100
    123
    130
    125
    115
    Option E
    +1,-3,+5,-7,+9
    ? = 115

     

  10. 42,47,?,72,92,117
    48
    45
    64
    57
    60
    Option D
    +5*1
    +5*2
    +5*3
    +5*4
    +5*5
    ? = 57

     


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