What will come in place of the question mark (?) in the following number series? 5, 11, 19, 29, 41, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 5, 11, 19, 29, 41, ?

A. 55

B. 57

C. 51

D. 53

Answer: Option A

Solution (By JKExamLibrary)

The differences are: 6, 8, 10, 12. These are increasing by 2. The next difference is 14. Therefore, 41+14=55.

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? 10, 17, 26, 37, ?

A. 49

B. 51

C. 48

D. 50

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Correct Answer: Option D

Explanation:
The differences are: 7, 9, 11. These are increasing by 2. The next difference is 13. Therefore, 37+13=50.

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? 4, 6, 12, 14, 28, 30, ?

A. 62

B. 32

C. 64

D. 60

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Correct Answer: Option D

Explanation:
The pattern alternates: +2, ×2, +2, ×2, +2, ×2. The last operation is ×2. Therefore, 30×2=60.[reference:14]

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? 6, 11, 18, 27, ?

A. 34

B. 38

C. 40

D. 36

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Correct Answer: Option B

Explanation:
The differences are: 5, 7, 9. These are consecutive odd numbers. The next difference is 11. Therefore, 27+11=38.

This question belongs to: Reasoning Number Series

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