What will come in place of the question mark (?) in the following number series? 2, 4, 8, 16, 32, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 2, 4, 8, 16, 32, ?

A. 64

B. 56

C. 48

D. 72

Answer: Option A

Solution (By JKExamLibrary)

Each term is multiplied by 2. Therefore, 32×2=64.

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? 2, 5, 12, 27, ?

A. 56

B. 58

C. 54

D. 60

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Correct Answer: Option B

Explanation:
Each term is obtained by multiplying by 2 and adding 1, then 2, then 3? Let's check: (2×2)+1=5, (5×2)+2=12, (12×2)+3=27. The next term is (27×2)+4=58.

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? 2, 7, 14, 23, ?, 47

A. 28

B. 34

C. 31

D. 38

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Correct Answer: Option B

Explanation:
The differences are: 5, 7, 9, 11, 13 (consecutive odd numbers). The missing term is 23+11=34.[reference:15]

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? 8, 27, 64, 125, ?

A. 144

B. 216

C. 256

D. 196

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Correct Answer: Option B

Explanation:
The series consists of cubes of consecutive integers starting from 2: 2³, 3³, 4³, 5³. The next term is 6³=216.

This question belongs to: Reasoning Number Series

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