What will come in place of the question mark (?) in the following number series? 2, 6, 14, 30, 62, ? 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, 14, 30, 62, ?

A. 120

B. 126

C. 122

D. 118

Answer: Option B

Solution (By JKSSB Mock Tests)

Each term is obtained by multiplying by 2 and adding 2. (2×2)+2=6, (6×2)+2=14, (14×2)+2=30, (30×2)+2=62. The next term is (62×2)+2=126.

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? 3, 8, 18, 38, 78, ?

A. 158

B. 148

C. 156

D. 152

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Correct Answer: Option A

Explanation:
Each term is obtained by multiplying by 2 and adding 2. (3×2)+2=8, (8×2)+2=18, (18×2)+2=38, (38×2)+2=78. The next term is (78×2)+2=158.

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? 6, 11, 18, 27, 38, 51, ?

A. 66

B. 68

C. 62

D. 64

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Correct Answer: Option A

Explanation:
The differences are: 5, 7, 9, 11, 13. These are consecutive odd numbers. The next difference is 15. Therefore, 51+15=66.

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? 6, 14, 30, 62, ?

A. 124

B. 122

C. 126

D. 128

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Correct Answer: Option C

Explanation:
Each term is obtained by multiplying by 2 and adding 2. (6×2)+2=14, (14×2)+2=30, (30×2)+2=62. The next term is (62×2)+2=126.

This question belongs to: Reasoning Number Series

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