Question

Statements: All ports are airports.
Some airports are harbours.
Some harbours are docks.
Conclusions: I. All docks being airports is a possibility.
II. All ports are harbours.

• 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 A if only conclusion I follows.

There are two cases possible.

All docks can be airports.

This is a possibility.

All ports are harbors.

This is also a possibility.

Thus only conclusion I is correct.

Hence, Option A is correct.