What will come in place of the question mark (?) in the following number series? 4, 16, 32, 52, 76, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 4, 16, 32, 52, 76, ?

A. 100

B. 104

C. 98

D. 96

Answer: Option B

Solution (By JKSSB Mock Tests)

The differences are: 12, 16, 20, 24. These are increasing by 4. The next difference is 28. Therefore, 76+28=104.

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, 9, 19, 39, ?

A. 81

B. 79

C. 83

D. 77

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Correct Answer: Option B

Explanation:
Each term is obtained by multiplying by 2 and adding 1. (4×2)+1=9, (9×2)+1=19, (19×2)+1=39. The next term is (39×2)+1=79.

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? 3, 5, 9, 17, ?

A. 31

B. 35

C. 29

D. 33

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Correct Answer: Option D

Explanation:
Each term is obtained by multiplying by 2 and subtracting 1. (3×2)-1=5, (5×2)-1=9, (9×2)-1=17. The next term is (17×2)-1=33.

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, 10, 16, 24, ?

A. 30

B. 36

C. 34

D. 32

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Correct Answer: Option C

Explanation:
The differences are: 4, 6, 8. These are increasing by 2. The next difference is 10. Therefore, 24+10=34.

This question belongs to: Reasoning Number Series

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