Quant Questions Bank PO

Quantitative Aptitude: Number Series Set 19 (based on NIACL Assistant Exam)

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

  1. 2, 4, 11, 28, 60, ?
    A) 145
    B) 152
    C) 112
    D) 144
    E) 126
    View Answer
    Option C
    Pattern:
    2       4         11          28           60         112
    ….2        7           17           32          52
    ………5        10          15           20
  2. 4, 6, 11, 21, 38, ? 
    A) 75
    B) 56
    C) 59
    D) 64
    E) 85
    View Answer
    Option D
    Pattern:  
    4       6         11          21           38         64
    ….2        5           10           17          26
    ………3           5         7               9
  3. 15, 33, 69, 123, ?, 285
    A) 172
    B) 106
    C) 195
    D) 220
    E) 188
    View Answer
    Option C
    Pattern:
    15          33         69            123           195          285
    ……18         36           54             72              90
  4. 4, 5, 12, 39,  160, ?
    A) 775
    B) 845     
    C) 645
    D) 735
    E) 805
    View Answer
    Option E
    Pattern:
    *1 + 1, *2 + 2, *3 + 3, *4 + 4, *5 + 5 
  5. 12, 6, 6, 9, ?, 45
    A) 18
    B) 19
    C) 14
    D) 26
    E) 23
    View Answer
    Option A
    Pattern:
    *0.5, *1, *1.5, *2, *2.5
  6. 12, 16, 24, 41, 74, ?
    A) 126
    B) 132
    C) 167
    D) 142
    E) 182
    View Answer
    Option B
    Pattern:
    12………. 16……….. 24…………. 41…..……. 74……………. 132
    .     +4          +8              +17             +33         +58        
    .           +22            +32            +42            +52
  7. 5, 7, 17, 55, ?, 1131
    A) 143
    B) 294
    C) 138
    D) 225
    E) 256
    View Answer
    Option D
    Pattern:
    5*1 + 2, 7*2 + 3, 17*3 + 4, 55*4 + 5, 225*5 + 6
  8. 4, 6, 15, 52.5, 236.25, ?
    A) 1066.375
    B) 1359.375
    C) 1480.375
    D) 1242.375
    E) 1299.375
    View Answer
    Option E
    Pattern:
    ×1.5, ×2.5,  ×3.5,  ×4.5, ×5.5,        
       
  9. 20, 10, 10, 15, ?, 75
    A) 38
    B) 34
    C) 30
    D) 52
    E) 44
    View Answer
    Option C
    Pattern:
    *0.5, *1, *1.5, *2, *2.5
  10. 15, 32, 66, 117, ?, 270
    A) 185
    B) 188
    C) 153
    D) 162
    E) 196
    View Answer
    Option A
    Pattern:
    15          32         66            117           185          270
    ……17         34           51               68             85

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