# Aptitude Questions – Number Series Set 67

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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. 4, 5, 6, 14, ?, 100.5
1. 32.5
2. 47.5
3. 67.5
4. 37.5
5. 27.5
Explanation :
4 * 1 + 1 = 5
5 * 1.5 – 1.5= 6
6 * 2 + 2 = 14
14 * 2.5 – 2.5 = 32.5
32.5 * 3 + 3 = 100.5

2. 8 4 4 8 32 ?
1.354
2.384
3.294
4.234
5.256
Explanation :
8 * 0.5 = 4
4 * 1 = 4
4 * 2 = 8
8 * 4 = 32
32 * 8 = 256

3. 2, 2, 7, ?, 87, 342
1.21
2.26
3.23
4.24
5.22
Explanation :
2 + 1² – 1 = 2
2 + 2² + 1= 7
7 + 4² – 1= 22

4. 6, 8, 8, 22, ?, 151
1.43
2.42
3.44
4.47
5.48
Explanation :
6 * 1 + 2 = 8
8 * 1.5 – 4 = 8
8 * 2 + 6 = 22
22 * 2.5 – 8 = 47
47 * 3 + 10 = 151

5. 4, ?, 14, 40, 88, 170
1.9
2.5
3.6
4.7
5.2
Explanation :
4 + 1² + 1= 6
6 + 3² – 1= 14
14 + 5² + 1= 40……..

6. 6, 6, 7, ?, 91, 463
1.33
2.43
3.38
4.25
5.44
Explanation :
6*1 – 1 + 1 = 6
6*2 – 2 – 3 = 7
7*3 – 1 + 5 = 25

7. 2, 5, 17, 50, 122, ?
1.252
2.258
3.257
4.225
5.242
Explanation :
2 + 1³ + 2 = 5
5 + 2³ + 4 = 17
17 + 3³ + 6 = 50
50 + 4³ + 8 = 122

8. 2, 9, 39, 161, ?, 2613
1.675
2.670
3.665
4.651
5.655
Explanation :
2 * 4 + 1 = 9
9 * 4 + 3 = 39
39 * 4 + 5 = 161
161 * 4 + 7 = 651
651 * 4 + 9 = 2613

9. 5, ?, 20, 34, 76, 142
1.4
2.5
3.7
4.8
5.9
Explanation :
5*2 – 2 = 8
8*2 + 4 = 20
20*2 – 6 = 34

10. 5, 6, 8, 30, 136, ?
1.645
2.680
3.650
4.690
5.620