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

April 23, 2017 Shubhra

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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