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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 eggs are hens. All hens are birds. All birds are crows. Conclusions: I. All eggs are crows. II. All hens are crows. III. Some crows are birds.

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 eggs are hens. All hens are birds. All birds are crows. Conclusions: I. All eggs are crows. II. All hens are crows. III. Some crows are birds. Correct Answer All conclusions I, II and III follow.

The least possible Venn diagram is as follows:

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Explanation:

I. All eggs are crows → True (All eggs are hens, which are birds, which in turn are crows. So, all eggs are crows is true).

II. All hens are crows → True (All hens are birds, which are crows. So, all hens are crows is true).

III. Some crows are birds → True (All birds are crows. So, some part of crows will be birds)

Hence, “All conclusions I, II and III follow” is the correct answer.

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