What will come in place of the question mark (?) in the following number series? 2, 12, 26, 44, 66, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 2, 12, 26, 44, 66, ?

A. 86

B. 84

C. 88

D. 92

Answer: Option D

Solution (By JKSSB Mock Tests)

The differences are: 10, 14, 18, 22. These are increasing by 4. The next difference is 26. Therefore, 66+26=92.

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? 10, 30, 90, 270, ?

A. 540

B. 720

C. 960

D. 810

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Correct Answer: Option D

Explanation:
Each term is multiplied by 3. Therefore, 270×3=810.

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, 9, 16, 25, 36, ?

A. 49

B. 42

C. 56

D. 44

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Correct Answer: Option A

Explanation:
The series consists of squares of consecutive integers: 2², 3², 4², 5², 6². The next term is 7²=49.

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? 1, 2, 6, 24, ?

A. 120

B. 60

C. 80

D. 100

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Correct Answer: Option A

Explanation:
The pattern is: 1×1=1, 1×2=2, 2×3=6, 6×4=24. The next term is 24×5=120.

This question belongs to: Reasoning Number Series

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