What will come in place of the question mark (?) in the following number series? 5, 11, 23, 47, ? MCQ with Answer and Explanation

Question

Share Report Error

What will come in place of the question mark (?) in the following number series? 5, 11, 23, 47, ?

A. 93

B. 99

C. 97

D. 95

Answer: Option D

Solution (By JKExamLibrary)

Each term is obtained by multiplying by 2 and adding 1. (5×2)+1=11, (11×2)+1=23, (23×2)+1=47. The next term is (47×2)+1=95.

This question belongs to: Reasoning Number Series

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Number Series Questions

Question #1

Share Report

What will come in place of the question mark (?) in the following number series? 3, 5, 8, 12, 17, ?

A. 22

B. 23

C. 24

D. 21

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option B

Explanation:
The differences are: 2, 3, 4, 5. The next difference is 6. Therefore, 17+6=23.

This question belongs to: Reasoning Number Series

Question #2

Share Report

What will come in place of the question mark (?) in the following number series? 4, 16, 36, 64, ?

A. 144

B. 121

C. 81

D. 100

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option D

Explanation:
The series consists of squares of even numbers: 2², 4², 6², 8². The next term is 10²=100.

This question belongs to: Reasoning Number Series

Question #3

Share Report

What will come in place of the question mark (?) in the following number series? 6, 13, 24, 39, ?

A. 60

B. 56

C. 54

D. 58

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option D

Explanation:
The differences are: 7, 11, 15. These are increasing by 4. The next difference is 19. Therefore, 39+19=58.

This question belongs to: Reasoning Number Series

Explore All Number Series MCQs