Number series is an important is an important chapter from Banking exam point of view. Before solving these questions, read techniques to solve Number series here.

**Q1. What comes in the place of question mark in this series 5, 10, 15, 20,**__?__
a) 22

b) 25

c) 23

d) None of These

**Q2. What comes in the place of question mark in this series 4, 5, 7, 10, 14, 19,**

__?__
a) 26

b) 25

c) 24

d) None of These

Hint - Use pattern like first of all add 1, then add 2, then add 3 and so on

**Q3. What comes in the place of question mark in this series 47, 42, 37, 32, 27,**

__?__
a) 22

b) 23

c) 25

d) None of These

Hint - In series each number decreases by 5.

**Q4. What comes in the place of question mark in this series 27, 26, 24, 21, 17, 12,**

__?__
a) 11

b) 6

c) 8

d) None of These

Hint - Use pattern -1, then -2, then -3, then -4 and so on.

**Q5. What comes in the place of question mark in this series 2, 6, 18 ,**

__?__, 162
a) 54

b) 55

c) 44

d) None of These

Hint - In series all numbers are multiplied by 3.

**Q6. What comes in the place of question mark in this series 168, 84,**

__?__**, 21**

a) 42

b) 52

c) 44

d) None of These

Hint - In series all numbers are divided by 2.

**Q7. What comes in the place of question mark in this series 7, 35, 140,**

__?__, 840
a) 420

b) 430

c) 520

d) None of These

Hint - Use pattern *5, *4, *3, *2(*symbol denotes Multiplication)

**Q8. What comes in the place of question mark in this series 4,**

__?__**, 19 , 39, 79**

a) 11

b) 9

c) 8

d) None of These

Hint - Use Pattern *2+1.

**Q9. What comes in the place of question mark in this series 3, 6, 15,**

__?__**, 195, 978**

a) 60

b) 45

c) 48

d) None of These

Hint - Use Pattern *1+3, *2+3, *3+3, *4+3, *5+3

**Q10. What comes in the place of question mark in this series 9, 15, 27,**

__?__, 99
a) 52

b) 51

c) 54

d) None of These

Hint - Use Pattern *2-3

**Q11. What comes in the place of question mark in this series 10, 30, 15, 45,**

__?__,

**67.5**

a) 22.5

b) 26.5

c) 60

d) None of These

Hint - Use Pattern *3, /2, *3, /2, *3, /2

**Q12. What comes in the place of question mark in this series 64, 125, 216,**

__?__, 512

a) 260

b) 321

c) 343

d) None of These

Hint - Use Pattern (4)3 , (5)3, (6)3, (7)3, (8)3, (9)3,

**Q13. What comes in the place of question mark in this series 4, 5, 9,**

__?__

**,**

**34, 59**

a) 15

b) 18

c) 25

d) None of These

Hint - Use Pattern + 1^{2}, + 2^{2 }, +3^{2}, +4^{2}, +5^{2}

**Q14. What comes in the place of question mark in this series 5,**

__?__

**, 14, 41, 105, 230**

a) 6

b) 5

c) 7

d) None of These

Hint - Use Pattern +13 , +23 , +33 , +43 , +53

**Q15. What comes in the place of question mark in this series**

**49, 64,**

__?__

**, 100, 121, 144**

a) 76

b) 132

c) 81

d) None of These

Hint - Use Pattern 7^{2}, 8^{2 }, 9^{2}, 10^{2}, 11^{2 },^{ }12^{2}