Directions : In each of the question below are given four statements followed by four conclusions numbered I, II, III and IV. You have to assume everything in the statements to be true even if they seem to be at variance from commonly known facts and then decide which of the four given conclusions logically follows from the statements disregarding commonly known facts and select the appropriate answer.
Statements:
All documents are files.
Some files are papers.
All papers are certificates.
No certificate is a manuscript.
Conclusions:
I. At least some documents are papers.
II. No manuscript is a document.
III. At least some certificates are files.
IV. No paper is a document.
From the statements, we can draw a venn diagram as follows. Hence, statement II is definitely not true.
As some papers are files, some certificates are definitely files. Hence, statement III is true.
Statement I and IV are mutually exclusive and collectively exhaustive. Hence, either I or IV is true.
Thus, statement III and either I or IV follow. Hence, the answer is none of the above.
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