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

A. 122

B. 124

C. 128

D. 126

Answer: Option D

Solution (By JKSSB Mock Tests)

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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Question #1

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What will come in place of the question mark (?) in the following number series? 9, 14, 20, 27, ?

A. 35

B. 33

C. 37

D. 39

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Correct Answer: Option A

Explanation:
The differences are: 5, 6, 7. The next difference is 8. Therefore, 27+8=35.

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? 1, 9, 25, 49, ?, 121

A. 72

B. 81

C. 100

D. 64

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Correct Answer: Option B

Explanation:
The series consists of squares of odd numbers: 1², 3², 5², 7², 9², 11². The missing term is 9²=81.[reference:18]

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? 2, 8, 18, 32, 50, ?

A. 68

B. 70

C. 72

D. 74

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Correct Answer: Option C

Explanation:
The pattern is: 2×1²=2, 2×2²=8, 2×3²=18, 2×4²=32, 2×5²=50. The next term is 2×6²=72.

This question belongs to: Reasoning Number Series

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