Find the odd one: 13, 17, 19, 23, 27, 29 MCQ with Answer and Explanation

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Find the odd one: 13, 17, 19, 23, 27, 29

A. 17

B. 19

C. 27

D. 23

Answer: Option C

Solution (By JKSSB Mock Tests)

All others prime. 27 is not.

This question belongs to: Reasoning Logical Reasoning

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Question #1

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A man walks 10 km towards East, then turns right and walks 4 km, then turns right and walks 10 km. In which direction is he from the starting point?

A. West

B. East

C. North

D. South

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Correct Answer: Option D

Explanation:
East 10, right South 4, right West 10. Net South 4 km.

This question belongs to: Reasoning Logical Reasoning

Question #2

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If in a certain code, 'LONDON' is written as 'MOPOEP', how is 'PARIS' written?

A. QBSJT

B. QB SIT

C. QB SJT

D. QBRJT

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Correct Answer: Option A

Explanation:
Each letter +1: L→M, O→P, N→O, D→E, O→P, N→O. So P→Q, A→B, R→S, I→J, S→T = QBSJT.

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Question #3

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Statements: All pens are pencils. No pencil is an eraser. Conclusions: I. No pen is an eraser. II. Some erasers are pens.

A. Only I follows

B. Both follow

C. Neither follows

D. Only II follows

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Correct Answer: Option A

Explanation:
All pens are pencils and no pencil is an eraser, so no pen is an eraser. II is false.

This question belongs to: Reasoning Logical Reasoning

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