What will come in place of the question mark (?) in the following number series? 8, 13, 20, 29, 40, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 8, 13, 20, 29, 40, ?

A. 49

B. 53

C. 55

D. 51

Answer: Option B

Solution (By JKExamLibrary)

The differences are: 5, 7, 9, 11. These are consecutive odd numbers. The next difference is 13. Therefore, 40+13=53.

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, 7, 16, 29, 46, ?

A. 63

B. 67

C. 65

D. 61

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Correct Answer: Option C

Explanation:
The differences are: 5, 9, 13, 17. These are increasing by 4. The next difference is 21. Therefore, 46+21=67.

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? 2, 3, 6, 11, 18, ?

A. 27

B. 31

C. 29

D. 25

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Correct Answer: Option A

Explanation:
The differences are: 1, 3, 5, 7. These are consecutive odd numbers. The next difference is 9. Therefore, 18+9=27.

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, 8, 13, 20, 29, ?

A. 36

B. 42

C. 40

D. 38

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Correct Answer: Option C

Explanation:
The differences are: 3, 5, 7, 9. These are consecutive odd numbers. The next difference is 11. Therefore, 29+11=40.

This question belongs to: Reasoning Number Series

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