Question
In the questions given 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. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: All Books are Novels. All Novels are Journals. Some Journals are Magazines. Conclusion: I. Some Novels are Magazines. II. Some Magazines are Books. III. Some Journals are Books.Solution
All Novels are Journals (A) + Some Journals are Magazines (I) → No conclusion. Hence conclusion I does not follow. All Books are Novels (A) + All Novels are Journals (A) → All Books are Journals (A) + Some Journals are Magazines (I) → No conclusion. Hence conclusion II does not follow. All Books are Novels (A) + All Novels are Journals (A) → All Books are Journals (A) → Conversion → Some Journals are Books (I). Hence conclusion III follows.
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