What will come in place of the question mark (?) in the following number series? 5, 15, 29, 47, 69, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 5, 15, 29, 47, 69, ?

A. 95

B. 89

C. 87

D. 91

Answer: Option A

Solution (By JKExamLibrary)

The differences are: 10, 14, 18, 22. These are increasing by 4. The next difference is 26. Therefore, 69+26=95.

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? 12, 24, 48, 96, ?

A. 168

B. 144

C. 216

D. 192

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Correct Answer: Option D

Explanation:
Each term is multiplied by 2. Therefore, 96×2=192.

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? 8, 24, 48, 80, ?

A. 128

B. 100

C. 120

D. 112

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Correct Answer: Option C

Explanation:
The differences are: 16, 24, 32. These are increasing by 8. The next difference is 40. Therefore, 80+40=120.

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? 3, 4, 7, 11, 18, ?

A. 33

B. 27

C. 31

D. 29

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Correct Answer: Option D

Explanation:
This is a Fibonacci-like series where each term is the sum of the previous two terms. 7+11=18, 11+18=29. The next term is 29.

This question belongs to: Reasoning Number Series

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