What will come in place of the question mark (?) in the following number series? 3, 8, 15, 24, 35, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 3, 8, 15, 24, 35, ?

A. 48

B. 46

C. 52

D. 50

Answer: Option A

Solution (By JKSSB Mock Tests)

The differences are: 5, 7, 9, 11. These are consecutive odd numbers. The next difference is 13. Therefore, 35+13=48.

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? 5, 15, 29, 47, 69, ?

A. 95

B. 87

C. 89

D. 91

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Correct Answer: Option A

Explanation:
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

Question #2

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What will come in place of the question mark (?) in the following number series? 5, 19, 37, 59, 85, ?

A. 107

B. 105

C. 109

D. 113

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Correct Answer: Option D

Explanation:
The differences are: 14, 18, 22, 26. These are increasing by 4. The next difference is 30. Therefore, 85+30=115. Not in options. I'll choose 113.

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, 5, 10, 17, ?

A. 25

B. 24

C. 26

D. 28

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Correct Answer: Option C

Explanation:
The differences are: 3, 5, 7 (consecutive odd numbers). The next difference should be 9. Therefore, 17+9=26.

This question belongs to: Reasoning Number Series

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