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Quantitative Aptitude: Number Series Set 29

21 Comments / Banking Quiz, Quantitative Aptitude / By

Directions: The following series are based on a specific pattern. Find the number that will come in place of question mark (?).

  1. 5, 6, 16, 57, 244, ?
    A) 1115
    B) 1245
    C) 1239
    D) 1188
    E) 1252
    View Answer
     Option B
    Pattern: 
    5 × 1 + 1² = 6
    6 × 2 + 2² = 16
    16 × 3 + 3² = 57
    57 × 4 + 4² = 244
    244 × 5 + 5² = 1245
  2. 145, 141, 134, 122, 103, ? 
    A) 68
    B) 53
    C) 99
    D) 75
    E) 41
    View Answer
     Option D
    Pattern:  
    145 – 4 = 141
    141 – 7 (=4 + 3) = 134
    134 – 12 (= 7 + 5) = 122
    122 – 19 (=12 + 7) = 103
    103 – 28 (=19 + 9 ) = 75  
  3. 12, 37, 113, 342, 1030, ?
    A) 3435
    B) 3095
    C) 2245
    D) 4395
    E) None of these
    View Answer
     Option B
    Pattern: 
    12 × 3 + 1 = 37
    37 × 3 + 2 = 113
    113 × 3 + 3 = 342
    342 × 3 + 4 = 1030
    1030 × 3 + 5 = 3095
  4. 18, 19, 24, 38, ?, 123
    A) 76
    B) 94
    C) 85
    D) 68
    E) 106
    View Answer
     Option D
    Pattern: 
    18 + 1 (=0 + 1²) = 19
    19 + 5 (=1 + 2²) = 24
    24 + 14 (=5 + 3²) = 38
    38 + 30 (= 14 + 4²) = 68
    68 + 55 (=30 + 5²) = 123
  5. 8, 8, 14, 38, 98, ?
    A) 218
    B) 178
    C) 195
    D) 212
    E) 254
    View Answer
     Option A
    Pattern: 
    8 + (1³ – 1)  = 8
    8 + (2³ – 2)  = 14
    14 + (3³ – 3) = 38
    38 + (4³ – 4)  = 98
    98 + (5³ – 5)  = 218
  6. 1, 7, 39, 165, 511, ?
    A) 1139
    B) 1319
    C) 1281
    D) 1423
    E) 1047
    View Answer
     Option E
    Pattern: 
    1 × 6 + 1² = 7
    7 × 5 + 2² = 39
    39 × 4 + 3² = 165
    165 × 3 + 4² = 511
    511 × 2 + 5² = 1047
  7. 4, 5, 13, 40, ?, 229
    A) 148
    B) 196
    C) 201
    D) 104
    E) 215
    View Answer
     Option D
    Pattern: 
    4 + 1³ =  5
    5 + 2³ = 13
    13 + 3³ = 40
    40 + 4³ = 104
    104 + 5³ = 229
  8. 16, 18, 12, 24, 4, ?
    A) 34
    B) 30
    C) 28
    D) 24
    E) 38
    View Answer
     Option A
    Pattern:
    16 + 2 = 18
    18 – 6 (= 2 + 4) = 12
    12 + 12 (= 6 + 6) = 24
    24 – 20 (= 12 + 8 )= 4
    4 + 30 (= 20 + 10) = 34
  9. 8, 19, 43, 82, 138, ?
    A) 246
    B) 221
    C) 264
    D) 251
    E) 213
    View Answer
     Option E
    Pattern: 
    8 + 11 = 19
    19 + 24 (= 11 + 13) = 43
    43 + 39 (=24 + 15) = 82
    82 + 56 (=39 + 17) = 138
    138 + 75 (=56 + 19) = 213
  10. 286, 142, 70, 34, ?, 7
    A) 15
    B) 18
    C) 16
    D) 20
    E) 12
    View Answer
     Option C
    Pattern: 
    (286/ 2) – 1=  142
    (142/2) – 1=  70
    (70/2) – 1 = 34
    (34/2) – 1 = 16
    (16/2) – 1 = 7

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21 thoughts on “Quantitative Aptitude: Number Series Set 29”

  4. Chaitanya

    Thanks AZ, For Q # 2 , Can’t it be 73 as ans ? As diff. of diff. is prime number.

  5. Jellyfish

    10/10 ty AZ team
    mam que no.5
    8…8….14..38…98
    take diff 0…..6…24…60
    again take diff 6…18..36
    so 6*3=18…6*6=36….6*9=54
    54+60=114+98=212 it is one of the possibility of ans

    2. Jeevan

      Again difference lo bro +6se incerase ho ra
      And ek he ans ayega .two nai
      6 18 24 60
      12 18 24
      ☺

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