Question

CSATHardPrelims 2022Reasoning

Two statements followed by four conclusions are given below. You have to take the statements to be true even if they seem to be at variance from the commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow from the statements, disregarding the commonly known facts : Statement-1 : All pen are books. Statement-2 : No chair is a pen.

Conclusion-I : All chair are books. Conclusion-II : Some chair are pens. Conclusion-III : All book are chair. Conclusion-IV : No chair is a book.

Which one of the following is correct?

Explanation

Conclusion-I: This conclusion does not logically follow because the statements do not provide any information that connects all chairs to books. We only know that chairs are not pens, and pens are books. This doesn’t imply that chairs are books.

Conclusion-II: This conclusion contradicts Statement-2, which clearly states that no chair is a pen. Therefore, this conclusion does not follow.

Conclusion-III: This conclusion does not follow because Statement-1 only states that all pens are books, not that all books are chairs. There’s no information connecting all books to chairs.

Conclusion-IV: This conclusion cannot be derived from the statements. While Statement-2 says no chair is a pen, it does not say anything about the relationship between chairs and books. Thus, this conclusion does not follow.