What will come in place of the question mark (?) in the following number series? 2, 3, 6, 11, 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, 3, 6, 11, 18, ?

A. 29

B. 25

C. 27

D. 31

Answer: Option C

Solution (By JKSSB Mock Tests)

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

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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. 59

D. 61

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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? 4, 11, 21, 34, ?

A. 49

B. 47

C. 50

D. 48

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Correct Answer: Option C

Explanation:
The differences are: 7, 10, 13. These are increasing by 3. The next difference is 16. Therefore, 34+16=50.

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, 6, 12, 24, 48, ?

A. 108

B. 72

C. 84

D. 96

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Correct Answer: Option D

Explanation:
Each term is multiplied by 2. Therefore, 48×2=96.

This question belongs to: Reasoning Number Series

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