Aptitude Questions – Number Series Set 57

Hello Aspirants.

Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series based on latest pattern, which is common for SBI,IBPS, RBI,LIC, NICL and other  competitive exams.

1. 5, 6, 14, 45, 184, ?
   1.927
   2.932
   3.925
   4.918
   5.920
   

   Answer & Explanation

   Answer – 3.925
   Explanation :
   5 * 1 + 1 = 6
   6 * 2 + 2 = 14
   14 * 3 + 3 = 45
   45 * 4 + 4 = 184
   184 * 5 + 5 = 925
   
   
2. 8 4 4 6 12 ?
   1.50
   2.20
   3.90
   4.30
   5.40
   

   Answer & Explanation

   Answer – 4.30
   Explanation :
   8 * 0.5 = 4
   4 * 1 = 4
   4 * 1.5 = 6
   6 * 2 = 12
   12 * 2.5 = 30
   
   
3. 16, 21, ?, 48, 74, 111
   1.32
   2.24
   3.25
   4.33
   5.31
   

   Answer & Explanation

   Answer – 5.31
   Explanation :
   21 – 16 = 5
   31 – 21 = 10
   48 – 31 = 17
   74 – 48 = 26; 10 – 5 = 5; 17 – 10 = 7; 26 – 17 = 9
   
   
4. 8, 9, 15, 32, ?, 250.5
   1.70.5
   2.82.5
   3.68.5
   4.71.5
   5.80.5
   

   Answer & Explanation

   Answer – 2.82.5Explanation :
   8 * 1 + 1 = 9
   9 * 1.5 + 1.5 = 15
   15 * 2 + 2 = 32
   32 * 2.5 + 2.5 = 82.5
   82.5 * 3 + 3 = 250.5
   
   
5. 11, ?, 18, 35, 100, 357
   1.13
   2.15
   3.16
   4.17
   5.12
   

   Answer & Explanation

   Answer – 1.13
   Explanation :
   11 + 1² + 1= 13
   13 + 2² + 1= 18
   18 + 4² + 1= 35……..
   
   
6. 8, 7, 12, ?, 128, 635
   1.42
   2.24
   3.33
   4.24
   5.14
   

   Answer & Explanation

   Answer – 3.33
   Explanation :
   8*1 – 1 = 7
   7*2 – 2 = 12
   12*3 – 3 = 33
   
   
7. 3, 3, 12, 38, 103, ?
   1.232
   2.221
   3.223
   4.227
   5.242
   

   Answer & Explanation

   Answer – 4.227
   Explanation :
   3 + 1³ – 1 = 3
   3 + 2³ + 1 = 12
   12 + 3³ – 1 = 38
   38 + 4³ + 1 = 103
   
   
8. 2, 5, 18, 49, 154, ?
   1.475
   2.470
   3.465
   4.453
   5.455
   

   Answer & Explanation

   Answer – 4.453
   Explanation :
   2 * 3 – 1 = 5
   5 * 3 + 3 = 18
   18 * 3 – 5 = 49
   49 * 3 + 7 = 154
   154 * 3 – 9 = 453
   
   
9. 11, ?, 33, 45, 59, 77
   1.53
   2.25
   3.21
   4.28
   5.21
   

   Answer & Explanation

   Answer – 5.21
   Explanation :
   11*2 – 1 = 21
   21*2 – 11 = 33
   33*2 – 21 = 45
   
   
10. 18, 20, 36, 114, 448, ?
    1.2370
    2.2340
    3.2250
    4.2410
    5.2520
    

    Answer & Explanation

    Answer – 3.2250
    Explanation :
    18 * 1 + 2 = 20
    20 * 2 – 4 = 36
    36 * 3 + 6 = 114
    114 * 4 – 8 = 448
    448 * 5 + 10 = 2250