Question

Statements: Some knives are pins.
All pins are keys.
No key is a lock.
Conclusions: I. Some locks are knives.
II. No lock is a knive.

• A. if only conclusion I follows.
• B. if only conclusion II follows.
• C. if either conclusion I or conclusion II follows.
• D. if neither conclusion I nor conclusion II follows.
• E. if both conclusion I and conclusion II follow.

Answer 1

The correct option is C if either conclusion I or conclusion II follows.

There are two cases possible.

some locks are knives.

This is a possibility not always correct.

No lock is a knives.

This is a possibility not always correct.

Thus either conclusions I or II is correct.

Hence, Option C is correct.