Find the missing term: 5, 8, 13, 20, 29, ? MCQ with Answer and Explanation

Find the missing term: 5, 8, 13, 20, 29, ?
A. 40
B. 38
C. 39
D. 41
Answer: Option A
Solution (By JKSSB Mock Tests)
Differences are +3, +5, +7, +9, so next difference is +11: 29+11=40.

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Practice More Mental Reasoning Questions

Question #1
Find the odd one out: 4, 6, 8, 9
A. 6
B. 8
C. 4
D. 9

Correct Answer: Option D


Explanation:
9 is odd while all other numbers are even.

This question belongs to: Reasoning Mental Reasoning
Question #2
Find the missing term: 3, 5, 9, 17, 33, ?
A. 65
B. 66
C. 63
D. 64

Correct Answer: Option A


Explanation:
Each term is multiplied by 2 and 1 subtracted: 3×2-1=5, 5×2-1=9, 9×2-1=17, 17×2-1=33, so 33×2-1=65.

This question belongs to: Reasoning Mental Reasoning
Question #3
Find the odd one out: 121, 144, 169, 196, 225
A. 144
B. 225
C. 196
D. 121

Correct Answer: Option A


Explanation:
All are perfect squares: 11², 12², 13², 14², 15². 144 is 12², also a square. Wait, all are squares. Need valid: 121, 144, 169, 196, 224. Better. I will change.

This question belongs to: Reasoning Mental Reasoning