A number series is a sequence of numbers that follows a certain pattern or rule. Each number in the series is derived from the previous numbers based on this pattern. The goal is to identify the underlying pattern and use it to predict or find the missing numbers in the series.

Number series can be presented in various forms, such as arithmetic series, geometric series, or based on a specific mathematical rule.

## Number Series SET 4 for Bank Exam

### Question 1

2, 6, 18, 54, ?, 486

A) 108

B) 162

C) 216

D) 324

### Question 2

5, 8, 14, 23, ?, 44

A) 32

B) 33

C) 34

D) 35

### Question 3

1, 4, 9, 16, ?, 36

A) 24

B) 25

C) 26

D) 27

### Question 4

7, 10, 16, 25, ?, 52

A) 37

B) 38

C) 39

D) 40

### Question 5

3, 5, 11, 21, ?, 85

A) 41

B) 42

C) 43

D) 44

### Question 6

4, 9, 19, ?, 79, 159

A) 37

B) 38

C) 39

D) 40

### Question 7

6, 12, 24, ?, 96, 192

A) 36

B) 48

C) 60

D) 72

### Question 8

8, 14, 26, ?, 98, 182

A) 46

B) 48

C) 50

D) 52

### Question 9

9, 18, ?, 72, 144, 288

A) 27

B) 36

C) 45

D) 54

### Question 10

10, ?, 40, 80, 160, 320

A) 15

B) 20

C) 25

D) 30

## Answers of Number Series

### Question 1

The answer is **A) 108. **

**Explanation:** The series is obtained by multiplying each term by 3.

### Question 2

The answer is **C) 34. **

**Explanation:** The series is obtained by adding the previous two terms.

### Question 3

The answer is **B) 25. **

**Explanation:** The series is obtained by squaring the natural numbers.

### Question 4

The answer is **D) 40.**

**Explanation:** The series is obtained by adding the previous term and the natural numbers.

### Question 5

The answer is **C) 43. **

**Explanation:** The series is obtained by multiplying each term by 2 and subtracting 1.

### Question 6

The answer is **C) 39. **

**Explanation:** The series is obtained by adding the previous term and 5.

### Question 7

The answer is **B) 48.**

**Explanation:** The series is obtained by multiplying each term by 2.

### Question 8

The answer is **D) 52.**

**Explanation:** The series is obtained by multiplying each term by 2 and subtracting 2.

### Question 9

The answer is **B) 36. **

**Explanation:** The series is obtained by multiplying each term by 2.

### Question 10

The answer is **B) 20. **

**Explanation:** The series is obtained by multiplying each term by 2 and subtracting 10.

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