**Number Series Questions for SSC CPO PDF**

Download SSC CPO Number Series Questions with answers PDF based on previous papers very useful for SSC CPO exams. 15 Very important Number Series Questions for SSC exams.

Download Number Series Questions for SSC CPO PDF

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**Question 1: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

19, 29, 40, 44, ?

a) 50

b) 52

c) 54

d) 48

**Question 2: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

7, 13, 21, 31, 43, 57, ?

a) 73

b) 83

c) 78

d) 63

**Question 3: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

3, 12, 48, ?

a) 96

b) 184

c) 192

d) 384

**Question 4: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

9, 1331, 18, 121, 27, ?

a) 19

b) 11

c) 17

d) 13

**Question 5: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

3, 4, 12, 48, ?

a) 426

b) 576

c) 467

d) 512

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**Question 6: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

3, 6, 11, 20, ?

a) 42

b) 41

c) 37

d) 47

**Question 7: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

8, 27, 125, 343, ?

a) 1000

b) 729

c) 1331

d) 1728

**Question 8: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

35, 39, 34, 38, ?

a) 39

b) 33

c) 32

d) 31

**Question 9: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

64, 100, 169, 289, ?

a) 484

b) 444

c) 404

d) 468

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**Question 10: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

3, 7, 13, 27, 53, ?

a) 105

b) 106

c) 107

d) 103

**Question 11: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

289, 256, 225, 196, ?

a) 164

b) 165

c) 169

d) 170

**Question 12: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

0, 4, 18, 48, 100, 180, ?

a) 294

b) 211

c) 186

d) 222

**Question 13: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

5, 30, 155, 780, ?

a) 4000

b) 3905

c) 3900

d) 3805

**Question 14: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

250, 370, 394, 400, ?

a) 401

b) 404

c) 402

d) 406

**Question 15: **A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

8,21,60,177,?

a) 425

b) 528

c) 525

d) 575

**Answers & Solutions:**

**1) Answer (B)**

The sum of digits of the previous number is added to the next number.

1 + 9 = 10 -> 19 + 10 = 29

2 + 9 = 11 -> 29 + 11 = 40

4 + 0 = 4 -> 40 + 4 = 44

4 + 4 = 8 -> 44 + 8 = **52**

=> Ans – (B)

**2) Answer (A)**

Even numbers are added.

Thus, missing number = **73**

=> Ans – (A)

**3) Answer (C)**

All the numbers are multiplied by 4.

Thus, missing number = **192**

=> Ans – (C)

**4) Answer (B)**

The pattern followed is for the alternate terms is :

Thus, missing number = **11**

=> Ans – (B)

**5) Answer (B)**

The previous number is multiplied.

4 $\times3$ = 12

12 $\times4$ = 48

48 $\times12$ = **576**

=> Ans – (B)

**6) Answer (C)**

The pattern followed is :

Thus, missing number = **37**

=> Ans – (C)

**7) Answer (C)**

Series of cubes of successive prime numbers.

$2^3$ = 8

$3^3$ = 27

$5^3$ = 125

$7^3$ = 343

$11^3$ = **1331**

=> Ans – (C)

**8) Answer (B)**

The pattern followed is :

Thus, missing number = **33**

=> Ans – (B)

**9) Answer (A)**

The pattern followed is :

Thus, missing number = **484**

=> Ans – (A)

**10) Answer (C)**

The pattern followed is :

Thus, missing term = **107**

=> Ans – (C)

**11) Answer (C)**

The pattern followed is that squares of natural numbers in decreasing order are given.

Thus, missing term = **169**

=> Ans – (C)

**12) Answer (A)**

The pattern followed is :

Thus, missing term = **294**

=> Ans – (A)

**13) Answer (B)**

The pattern followed is that each number is multiplied by 5 and then 5 is added.

Thus, missing term = **3905**

=> Ans – (B)

**14) Answer (C)**

The pattern followed is :

Thus, missing term = **402**

=> Ans – (C)

**15) Answer (B)**

The pattern followed is :

8 $\times3-3$ = 21

21 $\times3-3$ = 60

60 $\times3-3$ = 177

177 $\times3-3$ = **528**

=> Ans – (B)

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