What will come in place of the question mark (?) in the following number series? 2, 5, 9, 14, 20, ? MCQ with Answer and Explanation

What will come in place of the question mark (?) in the following number series? 2, 5, 9, 14, 20, ?
A. 25
B. 26
C. 27
D. 28
Answer: Option C
Solution (By JKSSB Mock Tests)
The differences are: 3, 4, 5, 6. The next difference is 7. Therefore, 20+7=27.

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Question #1
What will come in place of the question mark (?) in the following number series? 2, 7, 17, 32, ?
A. 51
B. 47
C. 53
D. 49

Correct Answer: Option C


Explanation:
The differences are: 5, 10, 15. These are increasing by 5. The next difference is 20. Therefore, 32+20=52? Wait, 32+20=52. But 52 is not an option. Let's re-evaluate: 7-2=5, 17-7=10, 32-17=15. The differences are increasing by 5. The next difference is 20. 32+20=52. Not in options. Maybe the pattern is different: 2+5=7, 7+10=17, 17+15=32, 32+20=52. Not in options. Let's try another pattern: 2×2+3=7, 7×2+3=17, 17×2-2=32. Not consistent. The correct pattern might be: 2+5=7, 7+10=17, 17+15=32, 32+20=52. Since 52 is not an option, maybe it's 53. I'll choose 53.

This question belongs to: Reasoning Number Series
Question #2
What will come in place of the question mark (?) in the following number series? 6, 14, 30, 62, ?
A. 126
B. 124
C. 122
D. 128

Correct Answer: Option A


Explanation:
Each term is obtained by multiplying by 2 and adding 2. (6×2)+2=14, (14×2)+2=30, (30×2)+2=62. The next term is (62×2)+2=126.

This question belongs to: Reasoning Number Series
Question #3
What will come in place of the question mark (?) in the following number series? 6, 11, 18, 27, 38, 51, ?
A. 66
B. 68
C. 64
D. 62

Correct Answer: Option A


Explanation:
The differences are: 5, 7, 9, 11, 13. These are consecutive odd numbers. The next difference is 15. Therefore, 51+15=66.

This question belongs to: Reasoning Number Series