Given below are three statements and three conclusions. Take the statements and conclusions to be true even if they are at variance with commonly known facts and decide whether the conclusion/s follow(s) the given statements.

Statements:

I. Some reptiles are amphibians.

II. All amphibians are insects.

III. some insects are not reptiles. (this statement is wrong)

Conclusions:

I. Some insects are reptiles.

II. All reptiles are insects.

III. No insect is a reptile.

Question

Question

This question was previously asked in

AP High Court Assistant Examiner 28 Nov 2021 Shift 3 (Official Paper)

Answer 1

The least possible Venn diagram is:

F1 Vilas State Govt. 16.12.2022 D11

Conclusions:

I. Some insects are reptiles. → Follows (As, Some reptiles are amphibians and All amphibians are insects)

II. All reptiles are insects. → Does not follow (As, Some reptiles are amphibians and All amphibians are insects → Some reptiles are insects)

III. No insect is a reptile. → Does not follow (As, Some reptiles are amphibians and All amphibians are insects → Some reptiles are insects)

Hence, Only conclusion I follows.