 Aptitude Questions – Number Series Set 60

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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, 9, 20, ?, 160.5
1. 52.5
2. 47.5
3. 67.5
4. 37.5
5. 27.5
Explanation :
4 * 1 + 1 = 5
5 * 1.5 + 1.5= 9
9 * 2 + 2 = 20
20 * 2.5 + 2.5 = 52.5
52.5 * 3 + 3 = 160.5

2. 12 6 6 12 48 ?
1.354
2.384
3.294
4.234
5.244
Explanation :
12 * 0.5 = 6
6 * 1 = 6
6 * 2 = 12
12 * 4 = 48
48 * 8 = 384

3. 2, 4, 9, ?, 91, 348
1.38
2.26
3.56
4.44
5.62
Explanation :
2 + 1² + 1 = 4
4 + 2² + 1= 9
9 + 4² + 1= 26

4. 6, 8, 16, 38, ?, 319
1.103
2.182
3.104
4.171
5.180
Explanation :
6 * 1 + 2 = 8
8* 1.5 + 4 = 16
16 * 2 + 6 = 38
38 * 2.5 + 8 = 103
103 * 3 + 10 = 319

5. 4, ?, 16, 42, 92, 174
1.9
2.5
3.6
4.7
5.2
Explanation :
4 + 1² + 1= 6
6 + 3² + 1= 16
16 + 5² + 1= 42……..

6. 6, 6, 13, ?, 177, 893
1.33
2.43
3.38
4.24
5.44
Explanation :
6*1 – 1 + 1 = 6
6*2 – 2 + 3 = 13
13*3 – 1 + 5 = 43

7. 2, 1, 13, 34, 106, ?
1.232
2.218
3.221
4.225
5.242
Explanation :
2 + 1³ – 2 = 1
1 + 2³ + 4 = 13
13 + 3³ – 6 = 34
34 + 4³ + 8 = 106

8. 2, 7, 31, 119, ?, 1923
1.475
2.470
3.465
4.483
5.455
Explanation :
2 * 4 – 1 = 7
7 * 4 + 3 = 31
31 * 4 – 5 = 119
119 * 4 + 7 = 483
483 * 4 – 9 = 1923

9. 3, ?, 12, 18, 44, 78
1.4
2.5
3.7
4.8
5.9
Explanation :
3*2 – 2 = 4
4*2 + 4 = 12
12*2 – 6 = 18

10. 5, 7, 10, 36, 136, ?
1.640
2.680
3.650
4.690
5.620
Explanation :
5 * 1 + 2 = 7
7 * 2 – 4 = 10
10 * 3 + 6 = 36
36 * 4 – 8 = 136
136 * 5 + 10 = 690

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