Quantitative Aptitude: Number Series for IBPS PO Prelims

Directions: The following series are based on a specific pattern. Find the next number following the pattern.

  1. 3, 4, 12, 45, 196, ?
    A) 1134
    B) 1005
    C) 1030
    D) 1014
    E) 1190
    View Answer
     Option B
    Pattern: 
    3 × 1 + 1² = 4
    4 × 2 + 2² = 12
    12 × 3 + 3² = 45
    45 × 4 + 4² = 196
    196 × 5 + 5² = 1005
  2. 14, 16, 10, 22, 2, ?
    A) 32
    B) 22
    C) 18
    D) 16
    E) 35
    View Answer
     Option A
    Pattern:
    ………+2………..-6………..+12………..-20…………+30
    ……………+4………+6………….+8………….+10
  3. 5, 5, 7, 13, 25, ?
    A) 53
    B) 61
    C) 56
    D) 39
    E) 45
    View Answer
     Option E
    Pattern: 
    5 + (12 – 1)  = 5
    5 + (22 – 2)  = 7
    7 + (32 – 3) = 13
    13 + (42 – 4)  = 25
    25 + (52 – 5)  = 45
  4. 13, 77, 126, 162, 187, ?
    A) 251
    B) 291
    C) 203
    D) 258
    E) 218
    View Answer
     Option C
    Pattern: 
    + 8², + 7², + 6², + 5², + 4²
  5. 2, 11, 31, 102, ?, 2094
    A) 213
    B) 199
    C) 485
    D) 337
    E) 417
    View Answer
     Option D
    Pattern: 
    2 * 1 + 9 = 11
    11 * 2 + 9 = 31
    31 * 3 + 9 = 102
    102 * 4 + 9 = 417
    417 * 5 + 9 = 2094
  6. 5, 14, 36, 84, ?, 388 
    A) 196
    B) 184
    C) 152
    D) 116
    E) 158
    View Answer
     Option B
    Pattern:
    ×2 + 4, ×2 + 8, ×2 + 12, ×2 + 16, ×2 + 20 
  7. 11, 12, 22, 69, 272, 
    A) 1365
    B) 1138
    C) 1255
    D) 1298
    E) 1175
    View Answer
     Option A
    Pattern: 
    × 1 + 1, × 2 – 2, × 3 + 3, × 4 – 4, × 5 + 5
  8. 8, 14, 21, 32, ?, 88
    A) 61
    B) 45
    C) 57
    D) 52
    E) 49
    View Answer
     Option D
    Pattern:
    ……..+6……….+7………+11……..+20…………+36
    ……………..+1………+4………+9………+16
  9. 9, 6, 9, 24, 108, ?
    A) 616
    B) 918
    C) 838

    D) 524
    E) 888
    View Answer
     Option E
    Pattern: 
    9 × 0.5 + 1.5 = 6
    6 × 1 + 1.5 × 2 = 9
    9 × 2 + 1.5 × 4 = 24
    24 × 4 + 1.5 × 8 = 108
    108 × 8 + 1.5 × 16 = 888
  10. 23, 46, 68, 88, ?, 112
    A) 92
    B) 101
    C) 104
    D) 99
    E) 109
    View Answer
     Option C
    Pattern: 
    ……..+23………..+22……..+20………..+16……….+8….
    ………………-1………….-2………..-4…………-8

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3 Thoughts to “Quantitative Aptitude: Number Series for IBPS PO Prelims”

  1. the walking dead

    🙂 check question no.2 and 5…something is wrong

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