Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

All birds are cows.

Some cows are hens.

Some dogs are birds.

Conclusions:

I. Some dogs are hens.

II. No hens are birds.

III. Some cows are dogs.

Question

Question

This question was previously asked in

SSC GD Constable (2022) Official Paper (Held On : 16 Jan 2023 Shift 3)

Answer 1

Given Statements:

All birds are cows.

Some cows are hens.

Some dogs are birds.

The least possible Venn diagram for the given statement is:

F1 SSC Savita 06-10-23 D41

Conclusions:

I. Some dogs are hens - False (Because, No definite relation given between dogs and hens, so it can be possible only).

II. No hens are birds - False (Because, No definite relation given between hens and birds, so it can be possible only).

III. Some cows are dogs - True (Because, Those parts of cows that is birds will also be dogs).

So, Only conclusion III follows.

Hence, the correct answer is "Option 4".