What will come in place of the question mark (?) in the following number series? 2, 6, 10, 14, 18, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 2, 6, 10, 14, 18, ?

A. 20

B. 24

C. 26

D. 22

Answer: Option D

Solution (By JKSSB Mock Tests)

The series increases by 4 each time. Therefore, 18+4=22.

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? 8, 15, 24, 35, 48, ?

A. 63

B. 65

C. 61

D. 59

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Correct Answer: Option A

Explanation:
The differences are: 7, 9, 11, 13. These are consecutive odd numbers. The next difference is 15. Therefore, 48+15=63.

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? 5, 9, 17, 33, ?

A. 67

B. 63

C. 69

D. 65

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Correct Answer: Option D

Explanation:
Each term is obtained by multiplying by 2 and subtracting 1. (5×2)-1=9, (9×2)-1=17, (17×2)-1=33. The next term is (33×2)-1=65.

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? 3, 7, 13, 21, ?

A. 31

B. 29

C. 33

D. 35

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Correct Answer: Option A

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

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