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Question

In the question below some statements are given followed by two conclusions I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusion definitely follows from the given statements, disregarding commonly known facts.

Statements:

No P is Q

All R is Q

Conclusions:

I. Some R is P

II. No R is P

A Only conclusion I follows Correct Answer Incorrect Answer
B Either conclusion I or II follows Correct Answer Incorrect Answer
C Only Conclusion II follows Correct Answer Incorrect Answer
D Both conclusions I and II follow Correct Answer Incorrect Answer

Solution

No P is Q (E) + [All R is Q (A) → Conversion] → Some Q is R (I) → Some R is not P (O*). Hence conclusion I does not follow. All R is Q (A) + [No P is Q (E) → Conversion] → No Q is P (E) → No R is P (E). Hence conclusion II follows.

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