What will come in place of the question mark (?) in the following number series? 13, 26, 52, 104, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 13, 26, 52, 104, ?

A. 182

B. 234

C. 208

D. 156

Answer: Option C

Solution (By JKSSB Mock Tests)

Each term is multiplied by 2. Therefore, 104×2=208.

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? 7, 11, 13, 17, 19, 23, ?

A. 28

B. 27

C. 18

D. 29

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Correct Answer: Option D

Explanation:
The series consists of consecutive prime numbers starting from 7: 7, 11, 13, 17, 19, 23, 29. Therefore, the next prime number after 23 is 29.[reference:3]

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? 5, 10, 17, 26, 37, ?

A. 46

B. 50

C. 48

D. 52

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Correct Answer: Option B

Explanation:
The differences are: 5, 7, 9, 11. These are consecutive odd numbers. The next difference is 13. Therefore, 37+13=50.

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? 5, 10, 15, 20, ?

A. 25

B. 22

C. 24

D. 30

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Correct Answer: Option A

Explanation:
The series is increasing by 5 each time. Therefore, the next term is 20+5=25.[reference:7]

This question belongs to: Reasoning Number Series

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