Number Series asked in SBI PO Prelims Exam – 6th May 2017
Here we have given Memory based Number Series questions. Candidates those who are all going to write the examination can check this pattern and make use it.
1). 7, 3, 2, 2, 4, ?
Logic: ×0.5-0.5, ×1-1, ×2-2, ×4-4, ×8-8
Answer: 24
2). 5, 6, 14, 23, 87, ?
Logic: Difference of 12, 23, 32, 43, 52
Answer: 112
3). 5, 6.2, 9, 13.4, 19.4, ?
Logic: : Difference of Difference- 1.6, 1.6, 1.6
Answer: 27
4). 6, 9, 20, 47, 106, ?
Logic: Difference of Difference- 8, 16, 32, 64,
Answer: 229
5). 4, 5, 16, 81, ?, 5113
Logic: ×1+1, ×3+1, ×5+1, ×7+1, ×9+1
Answer: 568
6). 180, 179, 183, 156, 172, ?
Logic: Difference of: -13, +22, -33, +42, -53
Answer: 47
7). 9, 4, 3, 3, 4, ?
Logic: ×0.5-0.5, ×1-1, ×1.5-1.5, ×2-2, ×2.5-2.5
Answer: 7.5
8). 6, 5, 14, 69, ?, 4337
Logic: ×1-1, ×3-1, ×5-1, ×7-1, ×9-1
Answer: 482
9). 4, 10, 160, 382, 640, ?
Logic: Difference of Difference: 144, 72, 36, 18
Answer: 916
10). 3, 10, 20, 39, 85, ?
Logic: Difference of Difference 3, 9, 27, 81
Answer: 212
11). 4, 31, 156, 499, 1228, ?
Logic: Difference of 3 x 32, 5 x 52, 7 x 72, 9 x 92, 11 x 112
Answer: 2559
12). 152, 156, 140, 176, 112, ?
Logic: Difference 22, -42, 62, -82, 102
Answer: 212
13). 7, 9, 21, 67, 273, ?
Logic: Difference of: x1+2, x2+3, x3+4, x4+5, x5+6
Answer: 1371
14). 6, 4, 5, 11, ?, 361
Logic: Difference of: x0.5+1, x1+1, x2+1, x4+1, x8+1
Answer: 45
