Question

In each of the questions below are given three statements followed by four conclusions numbered I, II, III and IV.
You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements
Some flowers are rods.
Some rods are doors.
Some doors are houses.

Conclusions
I. Some houses are flowers.
II. Some doors are flowers.
III. Some flowers are doors.
IV. No house is a flower.

• A. Both I and IV follow
• B. Both II and III follow
• C. Only either I or III follows
• D. Only either I or IV follows
• E. None of the above

Answer 1

The correct option is D Only either I or IV follows

All the three premises are particular affirmative (I-type)
We know that from particular premises no conclusion can be derived. Conclusion I and IV form a complementary pair.
Therefore, either conclusion I or IV follows

Only either I or IV follows.