Question
Statements: All dogs are cats. Some cats
are birds. Some birds are crows. Conclusions: I. Some dogs being crows is a possibility. II. Some dogs are birds. III. All cats are birds. In the question below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.Solution
All dogs are cats (A) + Some cats are birds (I) → Probable conclusion →Some dogs are birds (I) + Some birds are crows (I) → Probable conclusion → Some dogs may be crows (I). Hence conclusion I follows but conclusion II does not follow. Some cats are birds → I.I. → No conclusion. Hence conclusion III does not follow.
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