Number Series Problems with Solutions for SSC and Bank Exams

Number Series Problems with Solutions for Competitive Exams

Q.17. 4, 6, 16, 56, 240, ?

(A) 680  

(B) 840

(C) 960  

(D) 1020

(E) 1232

Answer: option E

Solution: 

4*1+2 = 6

6*2+4 = 16

16*3+8 = 56

56*4+16 = 240

240*5+32 = 1232

Q.18. 1, 2, 10, 37, ? , 226.

(A) 75  

(B) 84

(C) 95  

(D) 101

(E) 111

Answer: option D

Solution: 

1+1³ = 2

2+2³ = 10

10+3³ = 37

37+4³ = 101

101+5³ = 226

Q.19. 5, 11, 20, 43, 82,?

 (A) 135

 (B) 147

 (C) 155

 (D) 169

 (E) 234

Answer: option D

Solution: 

5*2+1 = 11

11*2-2 = 20

20*2+3 = 43

43*2-4 = 82

82*2+5 = 169

Q.20.  4, 5, 8, 28, 104, ?

(A) 425  

(B) 484

(C) 504  

(D) 522

(E) 536

Answer: option E

Solution: 

4*1+1 = 5

5*2-2 = 8

8*3+4 = 28

28*4-8 = 104

104*5+16 = 536

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