What will come in place of the question mark (?) in the following number series? 5, 10, 17, 26, 37, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 5, 10, 17, 26, 37, ?

A. 52

B. 50

C. 48

D. 46

Answer: Option B

Solution (By JKSSB Mock Tests)

The differences are: 5, 7, 9, 11. These are consecutive odd numbers. The next difference is 13. Therefore, 37+13=50.

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? 11, 23, 47, 95, ?

A. 191

B. 187

C. 189

D. 185

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Correct Answer: Option A

Explanation:
Each term is obtained by multiplying by 2 and adding 1. (11×2)+1=23, (23×2)+1=47, (47×2)+1=95. The next term is (95×2)+1=191.

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? 5, 8, 12, 17, ?

A. 23

B. 22

C. 21

D. 24

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Correct Answer: Option A

Explanation:
The differences are: 3, 4, 5. The next difference is 6. Therefore, 17+6=23.

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, 9, 28, 65, ?

A. 127

B. 126

C. 124

D. 125

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Correct Answer: Option B

Explanation:
The pattern is: 1³+1=2, 2³+1=9, 3³+1=28, 4³+1=65. The next term is 5³+1=126.[reference:8]

This question belongs to: Reasoning Number Series

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