SSC CGL / Reasoning

Syllogism sample question

Read the question, answer, option analysis and revision tip before taking a timed mock.

By Sarkari Engine Editorial DeskLast updated 20 July 2026Reviewed for independent exam-practice use

Question

Statements: All books are files. Some files are pens. Conclusion: Some books are pens.

  1. A. Definitely true
  2. B. Definitely false
  3. C. Cannot be determined
  4. D. Only if all files are books

Correct answer

Option C: Cannot be determined

The statements say all books lie inside files, and some files are pens. They do not prove that the files which are pens include any books. The conclusion may be true in one diagram and false in another, so it cannot be determined.

Why the other options are wrong

  • Definitely true over-assumes overlap between books and pens.
  • Definitely false is too strong because the overlap is possible.
  • Only if all files are books adds a condition not present in the statements.

Practice tip

In syllogism, possible overlap is not the same as definite overlap.

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