Wrong Number Series Questions for Bank PO Prelims PDF | Download Now

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

378      442        467         683        732        1244

64         25          216        49         512

4³        5²           6³           7²           8³

2) Answer: E

14*2+2²= 32

32*3+3²= 105

105*4+4² = 436

436*5+5² = 2205

2205*6+6² = 13266

3) Answer: C

64           48          84           231            866.25          4114.6875

      *0.75     *1.75     *2.75         *3.75           *4.75

4) Answer: C

113      150        201       266            345         438

37        51           65          79               93

14      14          14         14

5) Answer: E

116        145          114        151      110           153

+29       -31            +37        -41         +43

6) Answer: E

8        10       22         52          109            203

2         12        30          57            94

10        18          27           37

8        9        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) + 2³ = 10

(10 * 2) + 3² = 29

(29 * 2) + 4³ = 122

(122 * 2) + 5² = 269

(269 * 2) + 6³ = 754

9) Answer: A

21 – 5 = 16

16 * 4 = 64

64 – 3 = 61

61 * 2 = 122

122 – 1 = 121

10) Answer: D

Given series is

41      41      49      98        314        939

9⁰       8¹     7²        6³          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

Try Quantitative Aptitude Questions

Answers :

11) Answer: D

117 + 9² =198

198 + 8³ =710

710 + 7² = 759

759 + 6³ =975

975 + 5² =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 = 420 

(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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