Question

Statements: Some inputs are outputs.
All outputs are necessary.
No necessary is a result.
Conclusions: I. No output is a result.
II. Some necessary are not outputs.

• 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 three cases possible.

No output is result.

This is always true.

Some necessary are not outputs.

This is a possibility but not always true.

Thus only conclusion I is correct.

Hence, Option A is correct.