Exams › IBPS PO › Reasoning

Statements: All schools are colleges. Some universities are institutions. No school is a university. Conclusions: I. All colleges being universities is not a possibility. II. No college is a university is not a possibility. III. Some institutions are not schools is not a possibility. Which conclusion logically follows?

1. Only I follows
2. Only II follows
3. Only III follows
4. Only I and III follow

Correct answer: Only I and III follow

Solution

Since all schools are colleges and no school is a university, it is impossible for all colleges to be universities because that would force schools to be universities too. Also, some universities are institutions, so institutions can exist outside schools; hence 'some institutions are not schools' is possible, making the negation false. Therefore, only I and III follow.

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