Number Series Questions with Answers – Set 1

 

Introduction

Number Series questions test your ability to identify patterns and relationships between numbers. These questions help improve logical thinking, pattern recognition, and problem-solving skills.


Question 1

Find the next number:

2, 4, 8, 16, 32, ?

A) 48

B) 56

C) 64

D) 72

Answer

C) 64

Explanation

Each number is multiplied by 2.

2 × 2 = 4

4 × 2 = 8

8 × 2 = 16

16 × 2 = 32

32 × 2 = 64


Question 2

Find the next number:

5, 10, 15, 20, 25, ?

A) 28

B) 30

C) 35

D) 40

Answer

B) 30

Explanation

Each number increases by 5.

25 + 5 = 30


Question 3

Find the next number:

1, 4, 9, 16, 25, ?

A) 30

B) 34

C) 36

D) 49

Answer

C) 36

Explanation

These are perfect squares:

1², 2², 3², 4², 5²

Next:

6² = 36


Question 4

Find the next number:

3, 6, 12, 24, 48, ?

A) 72

B) 84

C) 96

D) 108

Answer

C) 96

Explanation

Each number is multiplied by 2.

48 × 2 = 96


Question 5

Find the next number:

10, 20, 30, 40, 50, ?

A) 55

B) 60

C) 65

D) 70

Answer

B) 60

Explanation

Each number increases by 10.

50 + 10 = 60


Key Learning

Common number series patterns include:

  • Addition

  • Subtraction

  • Multiplication

  • Division

  • Squares

  • Cubes

Always check simple patterns first.


Practice Tip

Look at the difference between consecutive numbers before trying more advanced methods.


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