# 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
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
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
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
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
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
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
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
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
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