What will come in place of the question mark (?) in the following number series? 7, 8, 10, 13, 17, ? MCQ with Answer and Explanation

Question

Share Report Error

What will come in place of the question mark (?) in the following number series? 7, 8, 10, 13, 17, ?

A. 20

B. 22

C. 21

D. 23

Answer: Option B

Solution (By JKSSB Mock Tests)

The differences are: 1, 2, 3, 4. The next difference is 5. Therefore, 17+5=22.

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? 2, 6, 18, 54, ?

A. 162

B. 324

C. 108

D. 216

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option A

Explanation:
Each term is multiplied by 3 to get the next term. Therefore, 54×3=162.[reference:10]

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? 8, 22, 40, 62, 88, ?

A. 118

B. 114

C. 108

D. 110

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option A

Explanation:
The differences are: 14, 18, 22, 26. These are increasing by 4. The next difference is 30. Therefore, 88+30=118.

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, 27, 55, ?

A. 112

B. 110

C. 109

D. 111

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option D

Explanation:
Each term is obtained by multiplying by 2 and adding 1. (6×2)+1=13, (13×2)+1=27, (27×2)+1=55. The next term is (55×2)+1=111.

This question belongs to: Reasoning Number Series

Explore All Number Series MCQs