Logical Reasoning - Logical Deduction - Discussion

Discussion Forum : Logical Deduction - Section 3 (Q.No. 6)
Directions to Solve

In each of the questions below are given three statements followed by three conclusions numbered I, II and III, You have to take the given 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 follows from the given statements disregarding commonly known facts.


6.

Statements: Some pens are books. All schools are books. Some colleges are schools.

Conclusions:

  1. Some colleges are pens.
  2. Some pens are schools.
  3. Some colleges are books.

Only I and II follow
Only II and III follow
Only I and III follow
All follow
None of these
Answer: Option
Explanation:

Some pens are books. All schools are books.

Since the middle term 'books' is not distributed even once in the premises, so no definite conclusion follows.

Some colleges are schools. All schools are books.

Since one premise is particular, the conclusion must be particular and should not contain the middle term.

So, it follows that 'Some colleges are books'. Thus, III follows.

Some pens are books. Some colleges are books.

Since both the premises are particular, no definite conclusion can be drawn.

Hence, only III follows.

Discussion:
5 comments Page 1 of 1.

Sri said:   10 years ago
Only conclusion three follows, but option E is "none of these" and there is no option for "only III follows".

Anirban said:   1 decade ago
Through the Venn Diagram Conclusion III is the only one.

That's why 'E' is the answer.

Meetali said:   1 decade ago
@Sandy.

What is the correct answer then can you explain?

Sandy said:   1 decade ago
Wrong I think. Through venn diagram its false.

Aditi said:   7 years ago
Why the answer is not C? Can anyone explain?

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