What will come in place of the question mark (?) in the following number series? 3, 4, 6, 9, 13, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 3, 4, 6, 9, 13, ?

A. 18

B. 20

C. 17

D. 19

Answer: Option A

Solution (By JKSSB Mock Tests)

The differences are: 1, 2, 3, 4. The next difference is 5. Therefore, 13+5=18.

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? 4, 8, 14, 22, ?

A. 30

B. 34

C. 28

D. 32

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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, 22+10=32.

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, 16, 29, 46, ?

A. 67

B. 63

C. 65

D. 69

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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, 46+21=67.

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? 7, 10, 15, 22, ?

A. 33

B. 35

C. 31

D. 29

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Correct Answer: Option C

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

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