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

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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. 37

C. 33

D. 39

Answer: Option A

Solution (By JKSSB Mock Tests)

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

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? 1, 3, 7, 15, ?

A. 31

B. 32

C. 35

D. 30

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Correct Answer: Option A

Explanation:
Each term is obtained by multiplying the previous term by 2 and adding 1. (1×2)+1=3, (3×2)+1=7, (7×2)+1=15. The next term is (15×2)+1=31.

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? 12, 24, 48, 96, ?

A. 168

B. 144

C. 192

D. 216

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Correct Answer: Option C

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

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, 7, 15, 31, ?

A. 67

B. 65

C. 61

D. 63

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Correct Answer: Option D

Explanation:
Each term is obtained by multiplying by 2 and adding 1. (3×2)+1=7, (7×2)+1=15, (15×2)+1=31. The next term is (31×2)+1=63.

This question belongs to: Reasoning Number Series

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