Dear Aspirants, Our IBPS Guide team is providing new series of Quants Questions for SBI/IBPS PO Prelims 2021 so the aspirants can practice it on a daily basis. These questions are framed by our skilled experts after understanding your needs thoroughly. Aspirants can practice these new series questions daily to familiarize with the exact exam pattern and make your preparation effective.
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Directions (01-10): Find out the wrong number in the following number series.
1) 378, 442, 466, 683, 732, 1244
A.466
B.378
C.442
D.683
E.1244
2) 14, 32, 105, 435, 2205, 13266
A.13266
B.32
C.2205
D.14
E.435
3) 60, 48, 84, 231, 866.25, 4114.6875
A.866.25
B.84
C.60
D.4114.6875
E.231
4) 113, 150, 201, 265, 345, 438
A.201
B.113
C.265
D.345
E.438
5) 116, 145, 114, 151, 110, 152
A.145
B.114
C.151
D.110
E.152
6) 8, 10, 22, 52, 109, 198
A.10
B.52
C.109
D.22
E.198
7) 12, 13, 28, 84, 352, 1765
A.13
B.28
C.1765
D.84
E.352
8) 1, 10, 29, 122, 269, 731
A.29
B.731
C.10
D.269
E.122
9) 21, 16, 64, 61, 80, 121
A.80
B.16
C.61
D.64
E.121
10) 39, 41, 49, 98, 314, 939
A.41
B.314
C.98
D.39
E.49
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Answers :
1) Answer: A
378Â Â Â Â 442Â Â Â Â Â Â Â Â 467Â Â Â Â Â Â Â 683Â Â Â Â Â Â 732Â Â Â Â Â Â Â 1244
64Â Â Â Â Â Â Â Â 25Â Â Â Â Â Â Â Â Â 216Â Â Â Â Â Â Â 49Â Â Â Â Â Â Â Â 512
43Â Â Â Â Â Â Â 52Â Â Â Â Â Â Â Â Â Â 63Â Â Â Â Â Â Â Â Â 72Â Â Â Â Â Â Â Â Â 83
2) Answer: E
14*2+22= 32
32*3+32= 105
105*4+42Â =Â 436
436*5+52Â = 2205
2205*6+62Â = 13266
3) Answer: C
64Â Â Â Â Â Â Â Â Â 48Â Â Â Â Â Â Â Â 84Â Â Â Â Â Â Â Â Â 231 Â Â Â Â Â Â Â Â Â Â 866.25Â Â Â Â Â Â Â Â 4114.6875
     *0.75    *1.75    *2.75       *3.75          *4.75
4) Answer: C
113Â Â Â Â 150Â Â Â Â Â Â Â 201Â Â Â Â Â Â Â 266Â Â Â Â Â Â Â Â Â Â 345Â Â Â Â Â Â Â 438
37Â Â Â Â Â Â 51Â Â Â Â Â Â Â Â Â Â Â 65Â Â Â Â Â Â Â Â Â 79Â Â Â Â Â Â Â Â Â Â Â Â Â 93
14Â Â Â Â Â Â 14Â Â Â Â Â Â Â Â 14Â Â Â Â Â Â Â Â 14
5) Answer: E
116Â Â Â Â Â Â 145Â Â Â Â Â Â Â Â Â 114Â Â Â Â Â Â Â 151 Â Â Â Â 110Â Â Â Â Â Â Â Â Â Â 153
+29Â Â Â Â Â -31 Â Â Â Â Â Â Â Â Â Â +37Â Â Â Â Â Â Â -41Â Â Â Â Â Â Â +43
6) Answer: E
8Â Â Â Â Â Â 10Â Â Â Â Â 22Â Â Â Â Â Â Â Â 52Â Â Â Â Â Â Â Â 109Â Â Â Â Â Â Â Â Â Â Â 203
2Â Â Â Â Â Â Â Â 12Â Â Â Â Â Â 30Â Â Â Â Â Â Â Â Â 57Â Â Â Â Â Â Â Â Â Â 94
10Â Â Â Â Â Â 18Â Â Â Â Â Â Â Â 27Â Â Â Â Â Â Â Â Â Â 37
8Â Â Â Â Â Â 9Â Â Â Â Â Â 10
7) Answer: D
12 * 1 + 1 = 13
13 * 2 + 2 = 28
28 * 3 + 3 = 87
87 * 4 + 4 = 352
352 * 5 + 5 = 1765
8) Answer: B
(1 * 2) + 23Â = 10
(10 * 2) + 32Â = 29
(29 * 2) + 43Â = 122
(122 * 2) + 52Â = 269
(269 * 2) + 63Â = 754
9) Answer: A
21 – 5 = 16
16 * 4 = 64
64 – 3 = 61
61 * 2 =Â 122
122 – 1 = 121
10) Answer: D
Given series is
41Â Â Â Â 41Â Â Â Â 49Â Â Â Â 98 Â Â Â Â Â Â 314Â Â Â Â Â Â 939
90Â Â Â Â Â Â 81Â Â Â Â 72Â Â Â Â Â Â 63Â Â Â Â Â Â Â Â Â 54
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Directions (11-20): Find the wrong term in the following number series
11) 117, 198, 710, 760, 975, 1000
A.710
B.1000
C.975
D.760
E.198
12) 6850, 5824, 4906, 4080, 3370, 2740
A.4080
B.2740
C.5824
D.4906
E.3370
13) 2, 4, 12, 48, 248, 1440
A.48
B.12
C.248
D.1440
E.4
14) 128, 238, 372, 526, 708, 918
A.238
B.526
C.708
D.918
E.372
15) 12, 27, 111, 685, 5489, 54901
A.685
B.111
C.5489
D.27
E.12
16) 1216, 1250, 1428, 1704, 2048, 2426
A.1704
B.2048
C.2426
D.1216
E.1428
17) 580, 504, 444, 397, 366, 350
A.366
B.504
C.444
D.397
E.None of these
18) 32, 18, 36, 110, 440, 1944
A.110
B.440
C.36
D.1944
E.None of these
19) 5, 15, 81, 479, 3360, 26879
A.479
B.26879
C.3360
D.81
E.None of these
20) 120, 180, 450, 650, 1687.5, 2531.25
A.650
B.180
C.1687.5
D.450
E.2531.25
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Answers :
11) Answer: D
117 + 92Â =198
198 + 83Â =710
710 + 72Â = 759
759 + 63Â =975
975 + 52Â =1000
12) Answer: A
193 – 9=6850
183 – 8=5824
173 – 7=4906
163 – 6=4090
153 – 5=3370
143 – 4=2740
13) Answer: C
2 * 1 + 2=4
4 * 2 + 4=12
12 * 3 + 12=48
48 * 4 + 48=240
240 * 5 + 240=1440
14) Answer: E
The pattern is,
128+112 – 11=238
238 +122 – 12=370
370 +132 – 13=526
526 +142 – 14=708
708 +152 – 15=918
The wrong term is, 372
15) Answer: B
The pattern is,
12 *2 + 3 =27
27 *4 + 5=113
113 *6 + 7=685
685 *8 + 9=5489
5489 *10 + 11 = 54901
The wrong term is, 111
16) Answer: A
The correct series is,
The difference of difference is, 122, 102, 82, 62,…
The wrong term is, 1704
17) Answer: C
18) Answer: B
(32 + 4) x 0.5 = 18
(18 + 6) x 1.5 = 36
(36 + 8) x 2.5 = 110
(110 + 10) x 3.5 = 420Â
(420 + 12) x 4.5 = 1944
19) Answer: C
5 x 4 – 5 = 15
15 x 5 + 6 = 81
81 x 6 – 7 = 479
479 x 7 + 8 = 3361
3361 x 8 – 9 = 26879
20) Answer: A
120 * 1.5 = 180
180 * 2.5 = 450
450 * 1.5 = 675
675 * 2.5 = 1687.5
1687.5 * 1.5 = 2531.25
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