What will come in place of the question mark (?) in the following number series? 1, 4, 10, 22, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 1, 4, 10, 22, ?

A. 44

B. 46

C. 48

D. 42

Answer: Option B

Solution (By JKSSB Mock Tests)

The pattern is: (1×2)+2=4, (4×2)+2=10, (10×2)+2=22. The next term is (22×2)+2=46.

This question belongs to: Reasoning Number Series

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Question #1

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What will come in place of the question mark (?) in the following number series? 2, 5, 9, 14, 20, ?

A. 28

B. 27

C. 26

D. 25

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Correct Answer: Option B

Explanation:
The differences are: 3, 4, 5, 6. The next difference is 7. Therefore, 20+7=27.

This question belongs to: Reasoning Number Series

Question #2

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What will come in place of the question mark (?) in the following number series? 7, 13, 25, 49, ?

A. 99

B. 103

C. 101

D. 97

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Correct Answer: Option D

Explanation:
Each term is obtained by multiplying by 2 and subtracting 1. (7×2)-1=13, (13×2)-1=25, (25×2)-1=49. The next term is (49×2)-1=97.

This question belongs to: Reasoning Number Series

Question #3

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What will come in place of the question mark (?) in the following number series? 11, 13, 17, 19, 23, ?

A. 27

B. 29

C. 31

D. 25

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Correct Answer: Option B

Explanation:
The series consists of consecutive prime numbers. The next prime number after 23 is 29.

This question belongs to: Reasoning Number Series

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