What will come in place of the question mark (?) in the following number series? 7, 14, 23, 34, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 7, 14, 23, 34, ?

A. 43

B. 49

C. 47

D. 45

Answer: Option C

Solution (By JKExamLibrary)

The differences are: 7, 9, 11. These are increasing by 2. The next difference is 13. Therefore, 34+13=47.

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? 5, 11, 23, 47, ?

A. 99

B. 95

C. 93

D. 97

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Correct Answer: Option B

Explanation:
Each term is obtained by multiplying by 2 and adding 1. (5×2)+1=11, (11×2)+1=23, (23×2)+1=47. The next term is (47×2)+1=95.

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, 10, 15, 22, ?

A. 33

B. 35

C. 29

D. 31

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Correct Answer: Option D

Explanation:
The differences are: 3, 5, 7. These are consecutive odd numbers. The next difference is 9. Therefore, 22+9=31.

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, 12, 26, 54, ?

A. 112

B. 114

C. 110

D. 108

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Correct Answer: Option C

Explanation:
Each term is obtained by multiplying by 2 and adding 2. (5×2)+2=12, (12×2)+2=26, (26×2)+2=54. The next term is (54×2)+2=110.

This question belongs to: Reasoning Number Series

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