Find the odd one out: 16, 25, 36, 49, 64, 81, 100 MCQ with Answer and Explanation

Find the odd one out: 16, 25, 36, 49, 64, 81, 100
A. 49
B. 64
C. 16
D. 81
Answer: Option A
Solution (By JKSSB Mock Tests)
All are squares: 4²,5²,6²,7²,8²,9²,10². No odd one. Wait, perhaps all perfect squares, no odd. Change to include non-square. For example standard odd is often one not square. Let's make 16,25,36,48,64,81. Then 48.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Mental Reasoning Questions

Question #1
A man is facing west. He turns 45° in the clockwise direction and then another 180° in the same direction and then 270° in the anti-clockwise direction. Which direction is he facing now?
A. South
B. West
C. North-West
D. South-West

Correct Answer: Option D


Explanation:
Start West. +45° CW → North-West. +180° CW → South-East. Then 270° ACW from South-East: 270° ACW is equivalent to 90° CW, so South-East +90° CW → South-West.

This question belongs to: Reasoning Mental Reasoning
Question #2
Find the missing term: 3, 9, 27, 81, ?
A. 324
B. 162
C. 243
D. 216

Correct Answer: Option C


Explanation:
Each term is multiplied by 3: 3×3=9, 9×3=27, 27×3=81, so 81×3=243.

This question belongs to: Reasoning Mental Reasoning
Question #3
Statements: No book is a pen. All pens are pencils. Conclusions: I. No book is a pencil. II. Some pencils are pens.
A. Neither follows
B. Both follow
C. Only II follows
D. Only I follows

Correct Answer: Option C


Explanation:
No book is pen and all pens are pencils does not mean no book is pencil (pencils may include other things). Some pencils are pens follows by conversion. Only II.

This question belongs to: Reasoning Mental Reasoning