Logical Reasoning - Logical Deduction - Discussion

Discussion Forum : Logical Deduction - Section 2 (Q.No. 9)
Directions to Solve

In each of the following questions, two statements are given followed by three or four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.


9.

Statements: Some bottles are drinks. All drinks are cups.

Conclusions:

  1. Some bottles are cups.
  2. Some cups are drinks.
  3. All drinks are bottles.
  4. All cups are drinks.

Only I and II follow
Only II and III follow
Only II and IV follow
Only III and IV follow
Only I and IV follow
Answer: Option
Explanation:
Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, it follows that 'Some bottles are cups'. Thus, I follows. II is the converse of the second premise and so it also holds.
Discussion:
3 comments Page 1 of 1.

Imran said:   4 years ago
Why conclusion IV is wrong?

As all drinks are cups so all cups should be drinks and so option IV should be correct. Anyone explain.

Saurabh bijlwan said:   6 years ago
The converse of 1st is some drink is bottle, not some cup are drink.

And how IV is wrong?

Ben said:   1 decade ago
Why Conclusion IV is wrong?

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