Aptitude Questions – Number Series Set 58

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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. 6, 6, 9, 18, 45, ?
   1.127
   2.132
   3.135
   4.118
   5.120
   
   Answer & Explanation

   Answer – 3.135
   Explanation :
   6 * 1 = 6
   6 * 1.5 = 9
   9 * 2 = 18
   18 * 2.5 = 45
   45 * 3 = 135
   
   
2. 8 4 4 8 32 ?
   1.254
   2.256
   3.292
   4.232
   5.246
   
   Answer & Explanation

   Answer – 2.256
   Explanation :
   8 * 0.5 = 4
   4 * 1 = 4
   4 * 2 = 8
   8 * 4 = 32
   32 * 8 = 256
   
   
3. 4, 6, 11, ?, 90, 347
   1.32
   2.28
   3.25
   4.33
   5.31
   
   Answer & Explanation

   Answer – 2.28
   Explanation :
   4 + 1² + 1 = 6
   6 + 2² + 1= 11
   11 + 4² + 1= 28
   
   
4. 3, 4, 9, 23, ?, 202.5
   1.70.5
   2.82.5
   3.64.5
   4.71.5
   5.80.5
   
   Answer & Explanation

   Answer – 3.64.5
   Explanation :
   3 * 1 + 1 = 4
   4* 1.5 + 3 = 9
   9 * 2 + 5 = 23
   23 * 2.5 + 7 = 64.5
   64.5 * 3 + 9 = 202.5
   
   
5. 8, ?, 20, 46, 96, 178
   1.10
   2.15
   3.16
   4.17
   5.12
   
   Answer & Explanation

   Answer – 1.10
   Explanation :
   8 + 1² + 1= 10
   10 + 3² + 1= 20
   20 + 5² + 1= 46……..
   
   
6. 8, 7, 13, ?, 151, 754
   1.42
   2.24
   3.38
   4.24
   5.14
   
   Answer & Explanation

   Answer – 3.38
   Explanation :
   8*1 – 1 = 7
   7*2 – 1 = 13
   13*3 – 1 = 38
   
   
7. 3, 3, 13, 37, 105, ?
   1.232
   2.221
   3.223
   4.225
   5.242
   
   Answer & Explanation

   Answer – 4.225
   Explanation :
   3 + 1³ – 1 = 3
   3 + 2³ + 2 = 13
   13 + 3³ – 3 = 37
   37 + 4³ + 4 = 105
   
   
8. 2, 7, 31, 119, 483, ?
   1.1975
   2.1970
   3.1965
   4.1923
   5.1955
   
   Answer & Explanation

   Answer – 4.1923
   Explanation :
   2 * 4 – 1 = 7
   7 * 4 + 3 = 31
   31 * 4 – 5 = 119
   119 * 4 + 7 = 483
   483 * 4 – 9 = 1923
   
   
9. 4, ?, 11, 17, 27, 45
   1.6
   2.5
   3.7
   4.8
   5.9
   
   Answer & Explanation

   Answer – 3.7
   Explanation :
   4*2 – 1 = 7
   7*2 – 3 = 11
   11*2 – 5 = 17
   
   
10. 8, 10, 16, 54, 208, ?
    1.1370
    2.1340
    3.1050
    4.1210
    5.1520
    
    Answer & Explanation

    Answer – 3.1050
    Explanation :
    8 * 1 + 2 = 10
    10 * 2 – 4 = 16
    16 * 3 + 6 = 54
    54 * 4 – 8 = 208
    208 * 5 + 10 = 1050