In bank exams, number series is a common type of question that tests your ability to identify the pattern or rule followed by a sequence of numbers and then predict the next number or missing number in the series.

## How to Solve Faster?

### 1. Identify the Pattern

The key to solving number series questions quickly is to identify the underlying pattern in the given sequence. Look for any arithmetic progression (adding or subtracting a constant number), geometric progression (multiplying or dividing by a constant number), or any other recurring pattern. Once you identify the pattern, you can extend it to predict the next numbers in the series.

### 2. Look for Relationships

Examine the relationship between adjacent numbers in the series. Look for any mathematical operations, such as addition, subtraction, multiplication, or division, that are applied consistently to obtain the next number. These relationships can provide clues to solving the series efficiently.

### 3. Test Options

If you are unable to identify the pattern immediately, you can test the given options by plugging them into the series. Start with the first option and see if it fits the series. If it doesn’t, move on to the next option until you find the one that works. This method can help you eliminate incorrect options and narrow down the possibilities, saving time in the process.

### 4. Use Mental Math

Develop strong mental math skills to perform calculations quickly and accurately. Practice basic arithmetic operations, such as addition, subtraction, multiplication, and division, without relying heavily on pen and paper or a calculator. The ability to perform calculations mentally will significantly speed up your problem-solving process.

### 5. Identify Common Number Patterns

Familiarize yourself with common number series patterns, such as the Fibonacci series, square numbers, cube numbers, prime numbers, alternating patterns, etc. Recognizing these patterns quickly will enable you to solve the series faster.

### 6. Practice Regularly

Regular practice is essential to improve your speed in solving number series questions. Solve a variety of number series problems from previous bank exams and other resources. The more you practice, the better you become at recognizing patterns and solving the series quickly.

## Number Series SET 5 for Bank Exam

### Question 1

1, 2, 9, 28, ___, 162

A) 65

B) 71

C) 97

D) 125

### Question 2

3, 6, 15, 36, ___, 174

A) 75

B) 81

C) 87

D) 93

### Question 3

4, 8, 16, 32, ___, 128

A) 17

B) 64

C) 72

D) 76

### Question 4

120, 60, 60, 90, 180 ___

A) 420

B) 450

C) 400

D) 500

### Question 5

_____, 190, 210, 238, 274, 318

A) 170

B) 198

C) 186

D) 178

### Question 6

112, ____, 166, 238, 382, 670

A) 152

B) 135

C) 144

D) 130

### Question 7

138, 210, 66, 282, -6,____

A) 354

B) 320

C) 332

D) 348

### Question 8

72, 80, 71, 135, ____, 326

A) 125

B) 110

C) 90

D) 105

### Question 9

___ , 20, 50,120, ___, 640

A) 10 and B)280

B) 11 and C)365

C) 12 and D)240

D) 13 and E228

### Question 10

1, 4, 9, 16, 25, ___, 49, 64

A)45

B)81

C)36

D32

## Answers

### Question 1

Answer: B) 71

Pattern: Multiply by 2, add 0, 5, 10…

### Question 2

Answer: B) 81

Pattern: Multiply by 2, add 0, 3, 6, 9…

### Question 3

Answer: B) 64

Pattern: Multiply by 2

### Question 4

Answer: B) 450

Pattern: multiply by 0.5 then 1 then 1.5….

### Question 5

Answer: D) 178

Pattern: difference of difference is equal

### Question 6

Answer: D) 130

Pattern: the difference is a multiple of 2

### Question 7

Answer: A) 354

Pattern: the difference is equal

### Question 8

Answer: B) 110

Pattern: the difference is square

### Question 9

Answer: A) 10 and B)280

Pattern: Multiply by two, add 0,10,20…

### Question 10

Answer: C) 36

Pattern: square pattern

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