Question : Directions: 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.
Option 1: Both conclusions I and III follow.
Option 2: Only conclusion II follows.
Option 3: Both conclusions I and II follow.
Option 4: Only conclusion I follows.
Correct Answer: Only conclusion I follows.
Solution : The possible Venn diagram according to the given statements is as follows –
Let's analyse the conclusions –
Conclusion (I):
Some fishes are deer – From the Venn diagram, the circle of deer intersects the circle of fish and has a common area between them. Therefore, this conclusion is true.
Conclusion (II):
No elephant is a deer – From the Venn diagram, there is no negative relation between elephant and deer. Therefore, this conclusion is false.
Conclusion (III):
Some tigers are fishes – From the Venn diagram, no fishes are tigers. Therefore, this conclusion is false.
So, the only conclusion I follows. Hence, the fourth option is correct.
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