Logical Reasoning - Logical Deduction - Discussion

Discussion Forum : Logical Deduction - Section 2 (Q.No. 1)
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.


1.

Statements: All branches are flowers. All flowers are leaves.

Conclusions:

  1. All branches are leaves.
  2. All leaves are branches.
  3. All flowers are branches.
  4. Some leaves are branches.

None follows
Only I and IV follow
Only II and III follow
All follow
Answer: Option
Explanation:
Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, it follows that 'All branches are leaves'. Thus, I follows. IV is the converse of this conclusion and so it also holds.
Discussion:
4 comments Page 1 of 1.

Sks said:   5 years ago
Explain with venn diagram.
(2)

Swa said:   9 years ago
What is meant by affirmative? Please give one example.

Surya said:   9 years ago
Because leaves are not affirmative.

Gagan said:   1 decade ago
If IV follows then why should not II follows?

Why some leaves are branches? According to statement.

All=branches=flowers=leaves=branches.

Please someone answer me.

Post your comments here:

Your comments will be displayed after verification.