What will come in place of the question mark (?) in the following number series? 2, 10, 30, 68, 130, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 2, 10, 30, 68, 130, ?

A. 200

B. 220

C. 222

D. 210

Answer: Option C

Solution (By JKSSB Mock Tests)

The pattern is: 1³+1=2, 2³+2=10, 3³+3=30, 4³+4=68, 5³+5=130. The next term is 6³+6=222.

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, 22, 40, 62, 88, ?

A. 108

B. 118

C. 110

D. 114

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Correct Answer: Option B

Explanation:
The differences are: 14, 18, 22, 26. These are increasing by 4. The next difference is 30. Therefore, 88+30=118.

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? 13, 26, 52, 104, ?

A. 156

B. 208

C. 182

D. 234

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Correct Answer: Option B

Explanation:
Each term is multiplied by 2. Therefore, 104×2=208.

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? 4, 9, 16, 25, 36, ?

A. 49

B. 56

C. 44

D. 42

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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

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