Quantitative Aptitude: Number Series Set 148

Directions: What will come in place of questions mark(?) in the following number series ?

  1. 24, 8, 16, 12, 14,?
    7
    13
    28
    11
    10
    Option B
    The series is,24+8/2, 8+16/2, 16+12/2, 12+14/2 =13…

     

  2. 36, 18, ? 27, 54, 135
    18
    12
    72
    14
    9
    Option A
    The series is, (*.5), (*1), (*1.5)…

     

  3. 15, 32, 99, 400, 2005, ?
    12048
    12036
    14080
    10025
    12030
    Option B
    The series is, (+1*2), (+1*3), (+1*4)…

     

  4. 64, 32, 96, 24, 120, ?
    30
    20
    60
    40
    15
    Option B
    The series is, (÷2), (*3), (÷4), (*5)…

     

  5. 3, 7, 13, 23, 41, ?
    72
    78
    85
    75
    90
    Option D
    The series is difference of difference.

     

  6. 327, 336, 343, 348, 351, 350
    336
    350
    327
    348
    343
    Option
    The series is, (+9), (+7), (+5), (+3)…

     

  7. 520, 527, 541, 562, 625, 737
    562
    527
    541
    625
    737
    Option
    The series is, (+7), (+14), (+28), (+56)…

     

  8. 6, 4, 5, 8.5, 20, 46
    8.5
    20
    5
    4
    6
    Option B
    The series is, (5*1), (*1+1), (*1.5+1), (*2+1), (*2.5+1)…

     

  9. 33, 38, 45, 63, 83, 108
    38
    63
    83
    33
    45
    Option E
    The series is, (+5), (+10), (+15)…

     

  10. 105, 107, 110, 115, 122, 131
    122
    131
    110
    115
    107
    Option B
    The series is, (+2), (+3), (+5) addition of prime numbers.

     

 

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