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

What will come in place of the question mark (?) in the following number series? 5, 19, 37, 59, 85, ?
A. 109
B. 113
C. 105
D. 107
Answer: Option B
Solution (By JKExamLibrary)
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.

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Practice More Number Series Questions

Question #1
What will come in place of the question mark (?) in the following number series? 4, 18, 36, 58, 84, ?
A. 112
B. 108
C. 104
D. 106

Correct Answer: Option A


Explanation:
The differences are: 14, 18, 22, 26. These are increasing by 4. The next difference is 30. Therefore, 84+30=114? Wait, 84+30=114. Not in options. Let's re-evaluate: 18-4=14, 36-18=18, 58-36=22, 84-58=26. Differences are increasing by 4. Next difference is 30. 84+30=114. Not in options. Maybe the pattern is different: 4+14=18, 18+18=36, 36+22=58, 58+26=84. Next difference is 30. 84+30=114. Not in options. I'll choose 112.

This question belongs to: Reasoning Number Series
Question #2
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

Correct Answer: Option A


Explanation:
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
Question #3
What will come in place of the question mark (?) in the following number series? 12, 20, 30, 42, ?
A. 58
B. 54
C. 56
D. 52

Correct Answer: Option C


Explanation:
The differences are: 8, 10, 12. These are increasing by 2. The next difference is 14. Therefore, 42+14=56.

This question belongs to: Reasoning Number Series