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

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

A. 2

B. 1

C. 0.5

D. 1.5

Answer: Option B

Solution (By JKExamLibrary)

Each term is divided by 2. Therefore, 2/2=1.

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? 4, 13, 28, 49, ?

A. 74

B. 72

C. 78

D. 76

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Correct Answer: Option D

Explanation:
The differences are: 9, 15, 21. These are increasing by 6. The next difference is 27. Therefore, 49+27=76.

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? 9, 17, 33, 65, ?

A. 125

B. 121

C. 129

D. 123

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Correct Answer: Option C

Explanation:
Each term is obtained by multiplying by 2 and subtracting 1. (9×2)-1=17, (17×2)-1=33, (33×2)-1=65. The next term is (65×2)-1=129.

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, 6, 12, 20, 30, ?

A. 40

B. 44

C. 42

D. 46

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Correct Answer: Option C

Explanation:
The differences are: 4, 6, 8, 10. These are increasing by 2. The next difference is 12. Therefore, 30+12=42.

This question belongs to: Reasoning Number Series

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