Find the odd one out: 63, 67, 71, 73 MCQ with Answer and Explanation

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Find the odd one out: 63, 67, 71, 73

A. 63

B. 73

C. 71

D. 67

Answer: Option A

Solution (By JKSSB Mock Tests)

67, 71 and 73 are prime numbers; 63 is composite (7 x 9).

This question belongs to: Reasoning Classification (Odd One Out)

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Practice More Classification (Odd One Out) Questions

Question #1

Find the odd one out: Coal, Petroleum, Natural gas, Sunlight

A. Natural gas

B. Petroleum

C. Sunlight

D. Coal

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Correct Answer: Option C

Explanation:
Coal, Petroleum and Natural gas are fossil fuels; Sunlight is a renewable source of energy.

This question belongs to: Reasoning Classification (Odd One Out)

Question #2

Find the odd one out: 15, 25, 35, 45

A. 25

B. 35

C. 45

D. 15

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Correct Answer: Option A

Explanation:
25 is a perfect square; 15, 35 and 45 are not perfect squares.

This question belongs to: Reasoning Classification (Odd One Out)

Question #3

Find the odd one out: Doctor, Teacher, Engineer, Medicine

A. Doctor

B. Engineer

C. Medicine

D. Teacher

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Correct Answer: Option C

Explanation:
Doctor, Teacher and Engineer are professions; Medicine is a field of study.

This question belongs to: Reasoning Classification (Odd One Out)

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