Find the next number in the series: 1, 3, 7, 15, 31, ? MCQ with Answer and Explanation

Question

Share Report Error

Find the next number in the series: 1, 3, 7, 15, 31, ?

A. 63

B. 64

C. 62

D. 65

Answer: Option A

Solution (By JKSSB Mock Tests)

Pattern: double and add 1. 31×2+1=63.

This question belongs to: Reasoning Logical Reasoning

Request complete Subject PDF

Discuss this Question (0)

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

Practice More Logical Reasoning Questions

Question #1

If 1st October is a Sunday, then 1st November will be

A. Wednesday

B. Tuesday

C. Monday

D. Thursday

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option A

Explanation:
October has 31 days. 31 = 4 weeks + 3 days. Sunday +3 = Wednesday.

This question belongs to: Reasoning Logical Reasoning

Question #2

If the word 'CHEMISTRY' is arranged in alphabetical order, which letter will be the middle letter?

A. H

B. M

C. I

D. R

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option B

Explanation:
CHEMISTRY sorted: C E H I M R S T Y. 9 letters, middle 5th is M.

This question belongs to: Reasoning Logical Reasoning

Question #3

F is the brother of A. C is the daughter of A. K is the sister of F. G is the brother of C. Who is the uncle of G?

A. A

B. K

C. F

D. C

View Answer & Solution Discuss

Get Complete Subject PDF for Reasoning

Correct Answer: Option C

Explanation:
F is brother of A, G is son of A (brother of C daughter of A). So F is uncle of G.

This question belongs to: Reasoning Logical Reasoning

Explore All Logical Reasoning MCQs