Find the odd one out: 121, 144, 169, 196, 225 MCQ with Answer and Explanation

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Find the odd one out: 121, 144, 169, 196, 225

A. 225

B. 121

C. 196

D. 144

Answer: Option D

Solution (By JKSSB Mock Tests)

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

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Practice More Mental Reasoning Questions

Question #1

If IN is coded as JO and AT as BU, then TO is coded as?

A. TP

B. UQ

C. VP

D. UP

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Correct Answer: Option D

Explanation:
The rule is shifting each letter forward by 1: I→J, N→O and A→B, T→U; so T→U, O→P, giving UP.

This question belongs to: Reasoning Mental Reasoning

Question #2

A is B's brother, B is C's sister, C is D's father. How is A related to D?

A. Father

B. Cousin

C. Grandfather

D. Uncle

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Correct Answer: Option D

Explanation:
B is C's sister, so C and B are siblings. A is B's brother, so A is also C's brother. Since C is D's father, A is D's uncle.

This question belongs to: Reasoning Mental Reasoning

Question #3

Find the missing term: 6, 13, 28, 59, ?

A. 122

B. 118

C. 124

D. 120

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Correct Answer: Option A

Explanation:
Pattern: 6×2+1=13, 13×2+2=28, 28×2+3=59, so next is 59×2+4=122.

This question belongs to: Reasoning Mental Reasoning

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