Statements: All rivers are lakes. Some lakes are oceans. Conclusions: I. Some oceans are rivers. II. Some lakes are rivers. MCQ with Answer and Explanation

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Statements: All rivers are lakes. Some lakes are oceans. Conclusions: I. Some oceans are rivers. II. Some lakes are rivers.

A. Only II follows

B. Neither follows

C. Only I follows

D. Both follow

Answer: Option A

Solution (By JKSSB Mock Tests)

All rivers are lakes ⇒ Some lakes are rivers. Some lakes are oceans does not imply some oceans are rivers. Only II.

This question belongs to: Reasoning Mental Reasoning

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Practice More Mental Reasoning Questions

Question #1

Find the missing term: 2, 6, 18, 54, 162, ?

A. 324

B. 504

C. 486

D. 498

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Correct Answer: Option C

Explanation:
Each term is multiplied by 3: 162×3=486.

This question belongs to: Reasoning Mental Reasoning

Question #2

Find the missing term: 4, 9, 25, 49, ?

A. 169

B. 81

C. 100

D. 121

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Correct Answer: Option D

Explanation:
These are squares of consecutive prime numbers: 2²=4, 3²=9, 5²=25, 7²=49, so next is 11²=121.

This question belongs to: Reasoning Mental Reasoning

Question #3

If 'RAT' is coded as 'IZG', then 'COW' is coded as?

A. XLD

B. XLE

C. WLD

D. XMD

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Correct Answer: Option A

Explanation:
Reverse letter coding: R→I, A→Z, T→G; C→X, O→L, W→D, so COW = XLD.

This question belongs to: Reasoning Mental Reasoning

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