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. Both I and II follow
B. Neither I nor II follows
C. Only conclusion II follows
D. Only conclusion I follows
Answer: Option A
Solution (By JKSSB Mock Tests)
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.
Statements:
1. Some papers are files.
2. Some files are folders.
Conclusions:
I. Some papers are folders.
II. All folders are papers.
Which conclusion(s) logically follow?
Explanation:
A 'some' relationship does not chain logically. There is no direct link established between papers and folders. Therefore, neither conclusion can be logically deduced.
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