Statements: 1. All rivers are lakes. 2. All lakes are oceans. Conclusions: I. Some oceans are rivers. II. No ocean is a river. Which conclusion(s) logically follow? MCQ with Answer and Explanation

Statements:
1. All rivers are lakes.
2. All lakes are oceans.
Conclusions:
I. Some oceans are rivers.
II. No ocean is a river.
Which conclusion(s) logically follow?
A. Either I or II follows
B. Only conclusion II follows
C. Neither I nor II follows
D. Only conclusion I follows
Answer: Option D
Solution (By JKExamLibrary)
Because rivers -> lakes -> oceans, all rivers are oceans. If all rivers are oceans, then some oceans must be rivers. Therefore, Conclusion I is definitely true and Conclusion II is definitely false.

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Practice More Statement and Conclusion Questions

Question #1
Statement:
In a recent survey, 80% of employees preferred remote work over office work to maintain a work-life balance.
Conclusions:
I. Office work completely destroys work-life balance.
II. Work-life balance is a priority for a majority of employees.
Which conclusion(s) logically follow?
A. Only conclusion I follows
B. Both I and II follow
C. Neither I nor II follows
D. Only conclusion II follows

Correct Answer: Option D


Explanation:
The statement shows a preference, not an absolute destructive nature of office work (Conclusion I is extreme). Because 80% (a majority) made a choice based on maintaining it, Conclusion II logically follows.

This question belongs to: Reasoning Statement and Conclusion
Question #2
Statement: She has a tattoo. Conclusions: I. She is a rebellious person. II. She has ink on her skin.
A. Only II follows
B. Only I follows
C. Neither I nor II follows
D. Both I and II follow

Correct Answer: Option A


Explanation:
Tattoo is ink on skin (II). Personality assumption (I) does not follow.

This question belongs to: Reasoning Statement and Conclusion
Question #3
Statement: Some roses are red. Conclusions: I. All red things are roses. II. At least one rose is not red.
A. Only I follows
B. Both I and II follow
C. Neither I nor II follows
D. Only II follows

Correct Answer: Option C


Explanation:
I is an invalid conversion. II: 'some are red' does not imply some are not red; it's possible all roses are red but the statement only says some. So neither follows.

This question belongs to: Reasoning Statement and Conclusion