Three Statements are given followed by Three conclusions numbered I, II, and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
All elephants are fishes.
No fish is a tiger.
Some deer are elephants.
Conclusions:
I. Some fishes are deer.
II. No elephant is a deer.
III. Some tigers are fishes.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Only conclusions I follows.
The least possible Venn Diagram for the given statements is drawn below:
Conclusions:
I. Some fishes are deer → True (As all elephants are fishes, and some deer are elephants, so, some fishes are deer is also true.)
II. No elephant is a deer → False (As elephants and deer are positive statements, no negative conclusion can be drawn.)
III. Some tigers are fishes → False (As no fish is a tiger, so, no positive statements can be drawn.)