Question

Statements: No key is a lock.
All locks are buttons.
No button is a clock.
Conclusions: I. No clock is a lock.
II. All buttons being locks is a possibility.

• 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

Answer: (E)

if both conclusion I and conclusion II follow.

There are two cases possible.

No clocks can be locks.

This is always possible.

All buttons can be locks.

This is also a possibility but not always correct.

Thus both conclusion I and II are correct.

Hence, Option E is correct.