In this question, three statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements.
Statements:
All leaves are plants.
All plants are trees.
All trees are big.
Conclusions:
I. Some trees are leaves.
II. All leaves are big.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. Both conclusions I and II follow.
The least possible Venn Diagram for the given statements is drawn below:

Conclusions:
I. Some trees are leaves → True (As all leaves are plants, and all plants are trees, so, some trees are leaves is also true.)
II. All leaves are big → True (As all leaves are plants, all plants are trees, and all trees are big, so, all leaves are big is also true.)
Hence, Both conclusions I and II follow.