Aptitude Questions: Number Series Set 50

Hello Aspirants. Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

Directions (1-10): In these questions, a number series is given. Find out the missing number in the series.

1. 14 21 35 57 88 ?
   A. 182
   B. 129
   C. 166
   D. 127
   E. 180
   

   Answer & Explanation

   Answer – B. 129
   Explanation :
   21 – 14 = 7
   35 – 21 = 14
   57 – 35 = 22   14 – 7 = 7; 22 – 14 = 8…..
   
   
2. 13, 21, 37, 61, ?, 133
   A. 96
   B. 93
   C. 92
   D. 97
   E. None of these
   

   Answer & Explanation

   Answer – B. 93
   Explanation :
   21 – 13 = 8
   37 – 21 = 16
   61 – 37 = 24….
   
   
3. 9, 10, 18, 57, ?, 1125
   A. 164
   B. 230
   C. 210
   D. 224
   E. 115
   

   Answer & Explanation

   Answer – D. 224
   Explanation :
   9 * 1 + 1 = 10
   10 * 2 – 2 = 18
   18 * 3 + 3 = 57
   
   
4. 14, 8, 7, 11.5, 22, ?
   A. 56
   B. 59
   C. 53
   D. 58
   E. 52
   

   Answer & Explanation

   Answer – A. 56
   Explanation :
   14 * 0.5 + 1 = 8
   8 * 1 – 1 = 7
   7 * 1.5 + 1 = 11.5
   
   
5. 13, 14, 26, 108, ? , 13712
   A. 836
   B. 896
   C. 842
   D. 856
   E. 824
   

   Answer & Explanation

   Answer – D. 856
   Explanation :
   13 * 1 + 1 = 14
   14 * 2 – 2 = 26
   26 * 4 + 4 = 108
   108 * 8 – 8 = 856
   856 * 16 + 16= 13712
   
   
6. 12, 14, 19, 36, ?, 358
   A. 105
   B. 104
   C. 106
   D. 102
   E. 101
   

   Answer & Explanation

   Answer – E. 101
   Explanation :
   12 + 1² + 1= 14
   14 + 2² + 1= 19
   19 + 4² + 1= 36……..
   
   
7. 4, ?, 4, 9, 32 155 
   A. 7
   B. 2
   C. 3
   D. 5
   E. 6
   

   Answer & Explanation

   Answer – C. 3
   Explanation :
   4*1 – 1 = 3
   3*2 – 2 = 4
   4*3 – 3 = 9.
   
   
8. 34, 34, 43, 69, 134, ?
   A. 164
   B. 160
   C. 175
   D. 258
   E. 103
   

   Answer & Explanation

   Answer – D. 258
   Explanation :
   34 + 1³ – 1 = 34
   34 + 2³ + 1 = 43
   43 + 3³ – 1 = 69
   
   
9. 12, 23, 35, 49, ?, 93
   A. 67
   B. 75
   C. 65
   D. 23
   E. 50
   

   Answer & Explanation

   Answer – A. 67
   Explanation :
   12*2 – 1 = 23
   23*2 – 11 = 35
   35*2 – 21 = 49
   
   
10. 25, 13, 14, ?, 47, 120
    A. 19.5
    B. 17.5
    C. 22.5
    D. 23.5
    E. 15.5
    

    Answer & Explanation

    Answer – C. 22.5
    Explanation :
    25*0.5 + 0.5 = 13
    13*1 + 1 = 14
    14*1.5 + 1.5 = 22.5