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# Number Series Questions for IBPS Clerk set-3 PDF

Download important Number Series Questions PDF based on previously asked questions in IBPS Clerk and other Banking Exams. Practice Number Series Questions and Answers for IBPS Clerk Exam.

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Instructions

What will come in place of the question mark (?) in each of the following number series.

Question 1:Â 158, 78, 38, 18, 8, ?

a)Â 3

b)Â 5

c)Â 2

d)Â 7

e)Â 6

Question 2:Â 16, 19, 24, 33, 50, ?

a)Â 83

b)Â 66

c)Â 99

d)Â 74

e)Â 102

Question 3:Â 402, 400, 388, 358, 302, ?

a)Â 212

b)Â 236

c)Â 190

d)Â 182

e)Â 210

Question 4:Â 31, 15, 21, 50, ?, 767.25

a)Â 160.5

b)Â 171.5

c)Â 156.5

d)Â 122.5

e)Â 143.5

Question 5:Â 8, 5.5, 8.5, 23, 89.5, ?

a)Â 455

b)Â 420.5

c)Â 445

d)Â 415.5

e)Â 433

Instructions

What should come in place of question mark (?) in the following number series?

Question 6:Â 3 4 12 ? 576 27648

a)Â 64

b)Â 96

c)Â 36

d)Â 52

e)Â None of these

Question 7:Â 4 12 60 420 ? 41580

a)Â 4620

b)Â 3780

c)Â 4200

d)Â 5040

e)Â None of these

Question 8:Â 6 349 565 ? 754 781

a)Â 629

b)Â 590

c)Â 601

d)Â 690

e)Â None of these

Question 9:Â 1.5 4 20 129 ? 10505

a)Â 1044

b)Â 1048

c)Â 1548

d)Â 1052

e)Â None of these

Question 10:Â 89250 17850 7140 1428 571.2 ?

a)Â 228.48

b)Â 126.12

c)Â 114.24

d)Â 246.48

e)Â None of these

Instructions

What will come in place of the question mark (?) in the following series ?

Question 11:Â 12 Â  22 Â  Â 69 Â  Â 272 Â  Â 1365 ?

a)Â 8196

b)Â 8184

c)Â 8195

d)Â 6830

e)Â None of these

Question 12:Â 1Â  Â  ??Â  Â 27 Â  Â  Â 64 Â  Â  125

a)Â 14

b)Â 4

c)Â 9

d)Â 8

e)Â None of these

Question 13:Â 104 Â  Â 153 Â  Â 189 Â  Â 214 Â  ?

a)Â 239

b)Â 225

c)Â 264

d)Â 235

e)Â None of these

Question 14:Â 15 Â  Â 17 Â  Â 32 Â  49 Â  Â 81 Â  130 Â  Â ?

a)Â 179

b)Â 211

c)Â 194

d)Â 226

e)Â None of these

Question 15:Â 15 Â  Â 17 Â  Â 21 Â  Â  29 Â  Â  45 Â  Â  77 ?

a)Â 109

b)Â 125

c)Â 141

d)Â 173

e)Â None of these

Each number is divided by 2 and then 1 is subtracted.

158 $\div 2 – 1$ = 78

78Â $\div 2 – 1$ =Â 38

38Â $\div 2 – 1$ =Â 18

18Â $\div 2 – 1$ =Â 8

8Â $\div 2 – 1$ =Â 3

The pattern isÂ :

16 + 3 = 19

19 + 5 (= 3 + 2) = 24

24 + 9Â (= 5 + 4) =Â 33

33 + 17Â (= 9 + 8) =Â 50

50 + 33Â (= 17 + 16) =Â 83

The pattern followed isÂ :

402 $- (1 \times 2)$ = 400

400Â $- (3 \times 4)$ =Â 388

388Â $- (5 \times 6)$ =Â 358

358Â $- (7 \times 8)$ =Â 302

302Â $- (9 \times 10)$ =Â 212

The pattern followed isÂ :

31 $\times 0.5 – 0.5$ = 15

15Â $\times 1.5 – 1.5$ =Â 21

21Â $\times 2.5 – 2.5$ =Â 50

50Â $\times 3.5 – 3.5$ =Â 171.5

171.5Â $\times 4.5 – 4.5$ =Â 767.25

The pattern followed isÂ :

8 $\times 1 – 2.5$ = 5.5

5.5Â $\times 2 – 2.5$ =Â 8.5

8.5Â $\times 3 – 2.5$ =Â 23

23Â $\times 4 – 2.5$ =Â 89.5

89.5Â $\times 5 – 2.5$ =Â 445

Each number is multiplied by the next number

3 $\times 4$ = 12

4Â $\times 12$ =Â 48

12Â $\times 48$ =Â 576

48Â $\times 576$ =Â 27648

Consecutive odd numbers starting from 3 are multiplied.

4 $\times 3$ = 12

12Â $\times 5$ =Â 60

60Â $\times 7$ =Â 420

420Â $\times 9$ =Â 3780

3780Â $\times 11$ =Â 41580

Cubes of natural numbers are added.

6 $+ 7^3$ = 349

349Â $+ 6^3$ =Â 565

565Â $+ 5^3$ =Â 690

690Â $+ 4^3$ =Â 754

754Â $+ 3^3$ =Â 781

Consecutive even numbers are multiplied and then square of natural numbers are added.

1.5 $\times 2 + 1^2$ = 4

4Â $\times 4 + 2^2$ =Â 20

20Â $\times 6 + 3^2$ =Â 129

129Â $\times 8 + 4^2$ =Â 1048

1048Â $\times 10 + 5^2$ =Â 10505

The numbers are alternatively divided by 5 and 2.5

89250 $\div 5$ = 17850

17850Â $\div 2.5$ =Â 7140

7140Â $\div 5$ =Â 1428

1428Â $\div 2.5$ =Â 571.2

571.2Â $\div 5$ =Â 114.24

The pattern followed isÂ :

12 $\times 2 – 2$ = 22

22Â $\times 3 + 3$ =Â 69

69Â $\times 4 – 4$ =Â 272

272Â $\times 5 + 5$ =Â 1365

1365Â $\times 6 – 6$ =Â 8184

This is a series of cubes of natural numbers.

$1^3$ = 1

$2^3$ =Â 8

$3^3$ =Â 27

$4^3$ =Â 64

$5^3$ =Â 125

Squares of natural numbers are added.

104 $+ 7^2$ = 153

153Â $+ 6^2$ =Â 189

189Â $+ 5^2$ =Â 214

214Â $+ 4^2$ =Â 230

Previous number is added to each number to get the next number

17 + 15 = 32

32 + 17 = 49

49 + 32 = 81

81 + 49 = 130

130 + 81 =Â 211

The pattern followed isÂ :

15 $+ 2^1$ = 17

17Â $+ 2^2$ =Â 21

21Â $+ 2^3$ =Â 29

29Â $+ 2^4$ =Â 45

45Â $+ 2^5$ =Â 77

77Â $+ 2^6$ =Â 141

We hope this Number Series Questions and answers for IBPS Clerk preparation will be helpful to you.