What will come in place of the question mark (?) in the following number series? 6, 12, 20, 30, 42, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 6, 12, 20, 30, 42, ?

A. 52

B. 58

C. 54

D. 56

Answer: Option D

Solution (By JKExamLibrary)

The pattern is: 1×2+4=6? Let's find differences: 6, 8, 10, 12. These are consecutive even numbers. The next difference is 14. Therefore, 42+14=56.

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, 14, 27, 44, ?

A. 65

B. 61

C. 67

D. 63

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Correct Answer: Option A

Explanation:
The differences are: 9, 13, 17. These are increasing by 4. The next difference is 21. Therefore, 44+21=65.

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? 3, 7, 13, 21, ?

A. 33

B. 29

C. 35

D. 31

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Correct Answer: Option D

Explanation:
The differences are: 4, 6, 8. These are increasing by 2. The next difference is 10. Therefore, 21+10=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? 6, 13, 22, 33, 46, ?

A. 59

B. 57

C. 61

D. 63

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Correct Answer: Option C

Explanation:
The differences are: 7, 9, 11, 13. These are consecutive odd numbers. The next difference is 15. Therefore, 46+15=61.

This question belongs to: Reasoning Number Series

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