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Lifespan of an Organism

Statements ar...

Question

Statements are given followed by four conclusions. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions if any, follow the given statement.

Statements
Some cats are dogs.
Some dogs are stones.

Conclusions
I.No cat is a stone.
II. All dogs are stones.
III. Some stones are cats.
IV. No dog is a cat.

A

Only I and III follow

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B

Only II and III follow

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C

Only I, III and IV follow

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D

None follow

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Solution

The correct option is D None follow
Both the premises are particular affirmative (I-type).
No conclusion follows from the two particular premises.
Conclusions I and III form a complementary pair. Therefore, either conclusion I or III follows.
Considering the given options, we can select option (4) as the answer.

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