Question : Directions: In the following question, one or two statements are given followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any follows from the given statements.
Statements:
Some monkeys are dogs.
All dogs are cats.
Conclusions:
I. Some monkeys are cats.
II. No dog is a cat.
Option 1: Only conclusion I follows
Option 2: Only conclusion II follows
Option 3: Either Conclusion I or Conclusion II follows
Option 4: Neither conclusion I nor II conclusion II follows
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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 monkeys are cats – From the Venn diagram, it is evident that the circles representing monkeys and cats overlap each other and have a part of their area in common. So, from this, it can be concluded that some monkeys are cats. Therefore, this conclusion follows.
Conclusion (II):
No dog is a cat – From the Venn diagram, it is evident that the circle representing dogs completely lies inside the circle representing cats. So, from this, it can be concluded that all dogs are cats. Thus, this conclusion does not follow.
So, only the conclusion I follows. Hence, the first option is correct.
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