Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Read the given statements and conclusions carefully. Statements: Some books are journals. All journals are magazines. Conclusions: (I) Some books are magazines. (II) All magazines are journals.
Only conclusion I follows.
Only conclusion II follows.
Both conclusions I and II follow.
Neither I nor II follows.
Only conclusion I follows.
Visualize Venn diagrams: Since all journals are within magazines, any book that overlaps with a journal must automatically overlap with the outer magazine circle.
Visualize Venn diagrams: Since all journals are within magazines, any book that overlaps with a journal must automatically overlap with the outer magazine circle.
Analyze Statement 1
Some books are journals implies there is an intersection between the set of Books and the set of Journals.
Analyze Statement 2
All journals are magazines means the entire set of Journals is contained within the set of Magazines.
Evaluate Conclusions
Since some books are journals and all journals are magazines, the books that are journals must also be magazines. This makes conclusion I true. However, 'All magazines are journals' is false because the magazine set is larger than the journal set.
B: Incorrect because all magazines are not necessarily journals; C: Incorrect because conclusion II is false; D: Incorrect because conclusion I is logically valid.
A is correct because the intersection of books and journals forces those specific books to be part of the magazine set, while the reverse (all magazines are journals) is not supported by the premises.
In Syllogism, always look for 'All' relations; they represent a subset-superset hierarchy. An item inside a subset is always inside the superset, but an item inside a superset is not necessarily inside the subset.