Quantitative Aptitude: Number Series Set 16

Number Series Questions Solutions for Bank PO, Insurance and SSC Exams.

Directions: What will come in place of (?) in following Number series following a certain pattern?

  1. 2, 6, 16, 40, 96, ?
    A) 224
    B) 204
    C) 211
    D) 235
    E) 253
    View Answer
    Option A
    Pattern:
    2 × 2 + 2 = 6,
    6 × 2 + 4 = 16,
    16 × 2 + 8 = 40,
    40 × 2 + 16 = 96
    96 × 2 + 32 = 224
  2. 21, 10, 9, 12, 22, ?
    A) 55.5
    B) 64.5
    C) 54.5
    D) 52.5
    E) 68.5
    View Answer
    Option D
    Pattern:
    21 × 0.5 – 0.5 = 10,
    10 × 1 – 1 = 9,
    9 × 1.5 – 1.5 = 12,
    12 × 2 – 2 = 22,
    22 × 2.5 – 2.5 = 52.5
  3. 15, 29, 27, 53, 51, ?
    A) 112
    B) 101
    C) 114
    D) 120
    E) 132
    View Answer
    Option B
    Pattern:
    15 × 2 – 1 = 29,
    29 × 1 – 2 = 27,
    27 × 2 – 1 = 53,
    53 × 1 – 2 = 51,
    51 × 2 – 1 = 101
  4. 3, 3, 6, 18, 84, ?
    A) 555
    B) 405
    C) 235
    D) 696
    E) 485
    View Answer
    Option D
    Pattern:
    3 × 0.5 + 1.5 = 3,
    3 × 1 + 3 = 6,
    6 × 2 + 6 = 18,
    18 × 4 + 12 = 84,
    84 × 8 + 24 = 696
  5. 22, 12, 8, 21, 26, ?
    A) 95
    B) 90
    C) 40
    D) 58
    E) 63
    View Answer
    Option B
    Pattern:
    22 * 0.5 + 12 = 12
    12 * 1 – 22 = 8
    8 * 1.5 + 32 = 21
    21 * 2 – 42 = 26
    26 * 2.5 + 52 = 90
  6. 4, 6, 24, 130, 924, ?
    A) 7125
    B) 6129
    C) 5257
    D) 8334
    E) 3652
    View Answer
    Option D
    Pattern:
    *1 + 2, *3 + 6, *5 + 10, *7 + 14, *9 + 18
  7. 26, 13, 20, 51, 180, ?
    A) 812
    B) 728
    C) 731
    D) 624
    E) 835
    View Answer
    Option A
    Pattern:
    *0.5 + 0, *1.5 + 0.5, *2.5 + 1, *3.5 + 1.5, *4.5 + 2
  8. 15, 28, 87, 344, 1725, ?
    A) 10376
    B) 10324
    C) 10344
    D) 10402
    E) 10444
    View Answer
    Option C
    Pattern:
    *2 – 2, *3 + 3, *4 – 4, *5 + 5, *6 – 6
  9. 5, 6, 7.5, 9.75, ?, 18.4275
    A) 15.3525
    B) 13.1625
    C) 14.9125
    D) 14.4725
    E) 15.2225
    View Answer
    Option B
    Pattern:
    *1.2, *1.25, *1.3, *1.35, *1.4
  10. 56, 60, 51, 67, 42, ?
    A) 70
    B) 88
    C) 53
    D) 62
    E) 78
    View Answer
    Option E
    Pattern:
    + 22, – 32, + 42, – 52, + 62

 

 

Related posts