Two 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 statement.
Statements:
No crow is a bird.
All birds are animals.
Conclusion:
I. Some animals are crows.
II. Some animals are birds.
III. No animal is a crow.
Show answer & explanation
Correct answer: C
Explanation
The Correct Answer is option 3 i.e. Conclusion II and either conclusion I or III follows.
| Understanding |
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Following venn diagram can be drawn with the help of given statements:
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Conclusions: I. Some animals are crows : False (This is possible but not definite, as no direct relationship between the two is given). II. Some animals are birds : True (As, All birds are part of animals, so some animals are birds is true). III. No animal is a crow : False (This is possible but not definite, as no direct relationship between the two is given). Conclusion I and III forms complementary pairs. Hence, Conclusion II and either conclusion I or III follows. |
