Statements: 1. All A are B. 2. All B are C. 3. All C are D. Conclusions: I. All A are D. II. Some D are B. Which conclusion(s) logically follow? MCQ with Answer and Explanation

Statements:
1. All A are B.
2. All B are C.
3. All C are D.
Conclusions:
I. All A are D.
II. Some D are B.
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
Answer: Option B
Solution (By JKExamLibrary)
Since it is a continuous chain of subsets (A is inside B, B inside C, C inside D), all A are definitively D. Additionally, since all B are D, some D are definitively B. Both follow.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Statement and Conclusion Questions

Question #1
Statement: The bag contains a water bottle. Conclusions: I. The bottle has water in it. II. There is at least one item in the bag.
A. Neither I nor II follows
B. Both I and II follow
C. Only I follows
D. Only II follows

Correct Answer: Option D


Explanation:
Water bottle may be empty; I does not follow. II is obviously true.

This question belongs to: Reasoning Statement and Conclusion
Question #2
Statement: The sun rises in the east. Conclusions: I. The east is a direction. II. The sun sets in the west.
A. Neither I nor II follows
B. Both I and II follow
C. Only I follows
D. Only II follows

Correct Answer: Option C


Explanation:
I is trivial. II is a related fact but not directly concluded from the statement. Only I follows.

This question belongs to: Reasoning Statement and Conclusion
Question #3
Statement: The bank is closed today. Conclusions: I. It is a public holiday. II. No banking transactions can be done at the branch.
A. Both I and II follow
B. Neither I nor II follows
C. Only I follows
D. Only II follows

Correct Answer: Option D


Explanation:
Closed means no over-the-counter services (II). Reason could be a strike, not necessarily holiday. I doesn't follow.

This question belongs to: Reasoning Statement and Conclusion