What will come in place of the question mark (?) in the following number series? 1, 3, 9, 27, 81, ? MCQ with Answer and Explanation

Question

Share Report Error

What will come in place of the question mark (?) in the following number series? 1, 3, 9, 27, 81, ?

A. 243

B. 162

C. 405

D. 324

Answer: Option A

Solution (By JKSSB Mock Tests)

Each term is multiplied by 3. Therefore, 81×3=243.

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? 1, 10, 100, ?

A. 10000

B. 2000

C. 1000

D. 500

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option C

Explanation:
Each term is multiplied by 10. Therefore, 100×10=1000.

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? 14, 21, 28, 35, ?

A. 42

B. 40

C. 41

D. 45

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option A

Explanation:
The series increases by 7 each time. Therefore, 35+7=42.

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? 3, 7, 13, 21, ?

A. 33

B. 35

C. 31

D. 29

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option C

Explanation:
The differences are: 4, 6, 8. These are increasing by 2. The next difference is 10. Therefore, 21+10=31.

This question belongs to: Reasoning Number Series

Explore All Number Series MCQs